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FEDERAL RESERVE statistical release
For release at 9:15 a.m. (EST)
January 17,1990

G.3 (402)

CAPACITY UTILIZATION
Manufacturing, Mining, Utilities, and Industrial Materials

Capacity utilization in manufacturing, mining, and utilities increased 0.2 percentage point in
December to 83.3 percent. A surge of 5 percentage points in the operating rate for utilities, which was the
largest in the 23-year history of this series, resulted from the abnormally cold temperatures experienced in
December. Elsewhere, utilization in manufacturing edged down 0.1 percentage point while the rate for mining
fell nearly a percentage point.
Utilization for manufacturing declined in December despite the return to work of strikers at a major
aircraft manufacturer, which boosted the operating rate for aerospace and miscellaneous transportation
equipment nearly 6 percentage points. Elsewhere, decreases in factory operating rates were widespread.
Utilization for primary metals continued the downward trend that began in late summer, dropping more than
2 percentage points in December to 78.8 percent, its lowest level since June 1987. Operating rates for both the
nonferrous metals and iron and steel industries have fallen to levels significantly below those earlier in the year.
Activity at auto assembly facilities remained slack in December as their operating rate held steady at
64.3 percent. Over the course of 1989, overall factory utilization declined 1.3 percentage points with durable
goods industries experiencing the bulk of the slowdown.
Utilization for producers of industrial materials fell 0.5 percentage point in December to
82.8 percent. The drop reflected declines for both durable and nondurable goods materials industries. The
operating rate for energy materials rose as a result of the increase in utilities output.

Capacity Utilization: Summary
Percent of capacity, seasonally adjusted
1973
Series
High
Total industry

1975
Low

1978
-80
High

1982
Low

1967
-88
Ave.

1989
Sep

Oct

Nov

Dec

88.6

72.1

86.9

69.5

81.6

83.6

83.1

83.1

83.3

Manufacturing
Durable manufacturing
Nondurable manufacturing

87.7
87.4
88.8

69.9
67.9
71.8

86.5
86.3
87.0

68.0
63.7
74.2

80.7
78.8
83.6

83.7
82.2
85.9

83.1
80.9
86.2

83.2
81.0
86.2

83.1
81.1
85.8

Mining
Utilities

92.8
95.6

87.8
82.9

95.2
88.5

76.9
78.0

86.5
86.7

83.4
80.8

84.0
81.7

84.3
81.3

83.4
86.3

Materials

92.0

70.5

89.1

68.5

82.3

83.6

83.5

83.3

82.8




CAPACITY UTILIZATION
DECEMBER DATA
SEASONALLY ADJUSTED, PERCENT

110

110
TOTAL INDUSTRY
TOTAL MATERIALS

90

90

70

70

50

1974

1976

1978

1980

1982

1984

1986

1988

1974

1976

1978

50

1980 1982 1984 1986 1988

110

110
MINING
1^

UTELrriES

90

90

70

70

MANUFACTURING

50

1974

1976

1978

1980 1982 1984 1986 1988

1974 1976 1978

50

1980 1982 1984 1986 1988

ELECTRICAL MACHINERY

70

NONELECTRICAL MACHINERY

50

1974

1976

1978

1980

1982

1984

1986

1988

1974

1976

1978

1980

1982

1984

1986 1988

110

110
TEXTILE, PAPER, AND
CHEMICAL MATERIALS

/i^ji

ALUMINUM

i

90

90

70

70

RAW STEEL

50

30

1974

1976




1978 1980 1982 1984 1986 1988

1974 1976 1978

\

/

1980 1982 1984 1986 1988

50

30

MANUFACTURING, MINING AND UTILITIES
Table 1

Capacity Utilization
Monthly seasonally adiusted
Series

1973
High

1975
Low

19?8
-80
High

1982
Low

1967
-88
Ave.

1988
Dec

1989
Apr

May

Jim

Jul

Aug

Sep

Oct

Nov

Dec

88.6

72.1

86.9

69.5

81.6

84.3

84.2

84.0

84.0

83.7

83.9

83.6

83.1

83.1

83.3

87.7

69.9

86.5

68.0

80.7

84.4

84.5

84.3

84.4

84.0

84.2

83.7

83.1

83.2

83.1

91.9
86.0

68.3
71.1

89.1
85.1

65.0
69.5

82.0
80.2

87.9
82.8

86.8
83.5

86.2
83.4

86.2
83.5

86.7
82.9

86.6
83.2

85.8
82.6

86.2
81.7

85.7
81.9

84.5
82.2

87.4
Durable manufacturing
89.3
Stone, day & glass prod.
101.9
Primary metals
105.8
Iron and steel
95.6
Nonferrous metals
Fabricated metal products 85.0
89.0
Nonelectrical machinery
85.7
Electrical machinery
Motor vehicles and parts
97.1
Autos
Aerosp. & misc. transp. eq 77.0
89.2
Instruments
87.7
Other durables

67.9
67.1
67.0
66.6
62.1
64.7
68.2
63.7
52.7

63.7
62.9
45.8
37.6
60.8
61.3
62.9
66.9
47.0
36.6
70.7
77.8
69.1

78.8
78.5
79.9
79.0
81.5
78.0
78.2
78.1
78.2
78.1
82.9
81.6

83.1
83.6
87.6
86.5
89.1
84.9
83.7
77.3
87.2
79.8
85.6
82.7
82.4

83.0
82.9
87.1
85.1
89.7
82.8
86.0
77.4
84.2
75.2
86.9
83.4
80.7

82.9
82.3
84.1
80.8
88.6
83.7
86.6
77.1
82.5
73.1
87.3
83.7
81.2

82.9
82.2
84.0
80.2
89.1
83.7
86.8
77.1
80.1
69.6
87.8
84.1
61.9

82.4
81.5
85.6
82.8
89.4
83.7
86.2
76.7
75.9
61.8
88.3
83.9
81.7

82.8
82.0
86.5
83.2
91.0
83.5
86.5
77.6
78.4
65.8
87.8
82.7
81.5

82.2
81.6
85.3
82.4
89.1
82.6
86.4
77.1
77.2
70.7
87.0
81.8
81.4

80.9
81.7
84.9
83.3
87.0
82.3
84.6
76.6
75.4
69.8
78.3
81.7
81.8

81.0
81.9
81.0
78.5
84.4
82.7
86.0
76.3
75.5
64.3
79.4
81.1
81.8

81.1

69.6
74.9
69.0

86.3
86.6
97.1
100.3
91.1
87.4
86.0
89.9
93.3
93.3
87.1
88.9
81.0

88.8
85.8
92.1
95.6
88.6
99.6
97.5
86.4

71.8
77.6
58.9
67.7
69.2
83.7
59.5
72.3

87.0
85.1
88.3
92.7
82.9
91.7
89.4
92.4

74.2
76.5
70.6
80.2
67.6
68.8
71.2
78.9

83.6
82.1
85.2
88.8
79.3
86.9
85.0
86.0

86.3
81.0
89.1
94.1
89.2
87.5
87.2
85.1

86.5
80.6
92.0
92.2
88.3
86.7
85.8
87.8

86.2
80.7
92.8
91.6
87.3
86.3
86.6
86.9

86.4
80.9
92.8
91.3
87.9
87.2
87.0
87.0

86.3
80.4
92.5
92.4
88.8
87.4
86.6
86.1

86.2
80.7
92.1
92.3
88.0
86.9
86.8
85.9

85.9
80.8
92.0
92.4
86.5
87.4
86.7
86.2

86.2
81.3
91.7
93.2
87.3
87.1
87.0
85.9

86.2
81.4
90.7
92.8
87.6
87.0
86.6
85.8

85.6

Mining

92.8

87.8

95.2

76.9

86.5

83.6

82.0

81.8

81.5

82.1

82.4

83.4

84.0

84.3

83.4

Utilities
Electric utiKties

95.6
98.7

82.9
83.0

88.5
87.6

78.0
78.2

86.7
87.9

82.0
84.7

82.9
86.8

81.8
85.8

80.8
84.9

80.5
85.0

80.0
84.4

80.8
85.1

81.7
86.1

81.3
85.6

86.3
90.7

1989
Ql

Qll

Qlll

QIV

1988
QIV

1989
Ql

Qll

Qlll

QIV

Total industry
Manufacturing
Primary processing
Advanced processing

Nondurable manufacturing
Foods
Textile mHI products
Paper and products
Chemicals and products
Petroleum products
Rubber & plastics prod.
Other nondurables

78.8
82.1
86.2
75.9
75.4
64.3
85.3
80,6
81.4
85.8

85.2

Table 2

Output, Capacity, and Capacity Utilization
Quarterly, seasonally adjusted
Capacity

Output

IMzsSstn

1988
QIV

1989
Ql

Qll

Qlll

QIV

1988
QIV

139.9

140.7

141.8

142.2

142.3

166.3

167.5

168.7

169.9

171.1

84.1

84.0

84.1

83.7

83.2

145.8

147.0

148.3

148.8

148.5

172.8

174.3

175.7

177.2

178.7

84.4

84.4

84.4

84.0

83.1

Primary processing
Advanced processing

127.7
156.7

127.8
158.6

127.6
160.8

128.8
160.9

128.5
160.4

145.2
189.5

146.5
191.0

147.8
192.6

149.1
194.2

150.4
195.8

87.9
82.7

87.3
83.0

86.4
83.5

86.4
82.9

85.5
81.9

Durable manufacturing
Stone, clay & glass prod.
Primary metals
Iron and steel
Nonferrous metals
Fabricated metal products
Nonelectrical machinery
Electrical machinery
Motor vehicles and parts
Autos
Aerosp. & misc. transp. eq.
Instruments
Other durables

145.2
124.4
92.3
80.5
114.5
124.1
175.7
182.0
123.4
116.9
152.3
159.8
139.9

146.0
125.8
90.9
79.1
113.2
124.3
180.8
181.4
122.9
110.6
153.7
161.4
138.5

147.1
124.2
88.2
74.4
114.4
124.4
186.2
181.9
119.3
108.9
157.1
164.3
141.3

147.3
123.4
89.5
75.6
115.9
125.1
187.6
182.6
112.4
99.0
158.8
164.4
142.7

145.6

175.0
149.4
102.6
89.6
127.1
146.9
211.9
233.5
143.8
150.2
177.5
191.8
171.2

176.1
150.0
103.1
90.0
127.7
148.0
213.5
234.5
144.4
150.2
178.6
193.9
172.5

177.4
150.5
103.7
90.6
128.4
149.1
215.4
235.6
145.0
150.0
179.9
196.2
173.8

178.6
151.1
104.3
91.3
129.0
150.2
217.2
236.7
145.7
149.8
181.1
198.5
175.1

179.8

82.9
83.2
90.0
89.8
90.1
84.5
82.9
78.0
85.8
77.8
85.8
83.3
81.7

82.9
83.9
88.2
87.9
88.6
83.9
84.7
77.3
85.1
73.6
86.0
83.2
80.3

83.0
82.5
85.1
82.0
89.1
83.4
86.5
77.2
82.3
72.6
87.3
83.7
81.3

82.5
81.7
85.8
82.8
89.9
83.3
86.3
77.1
77.2
66.1
87.7
82.8
81.5

81.0

Nondurable manufacturing
Foods
Textile mill products
Paper and products
Chemicals and products
Petroleum products
Rubber & plastics prod.
Other nondurables

146.7
145.2
117.4
151.4
157.4
96.4
177.3
148.3

148.4
146.1
119.8
152.4
158.9
97.1
175.8
152.3

149.9
147.2
123.3
150.3
159.1
97.4
180.3
155.3

151.0
148.1
123.3
152.9
161.0
98.1
183.4
155.3

171.6
181.0
132.7
162.3
178.8
112.1
205.5
175.7

173.5
182.4
133.2
163.9
181.1
112.3
208.5
178.1

175.3
183.7
133.7
165.5
183.5
112.5
211.5
180.4

177.2

156.9

169.8
179.6
131.8
160.7
176.7
111.9
202.6
173.3

182.3

86.4
80.8
89.1
94.2
89.1
86.2
87.5
85.6

86.5
80.7
90.2
93.9
88.9
86.6
85.5
86.7

86.4
80.7
92.5
91.7
87.9
86.7
86.5
87.2

86.1
80.6
92.2
92.4
87.8
87.2
86.7
86.1

Mining

104.2

101.8

102.0

102.7

103.9

125.7

125.1

124.7

124.3

123.8

82.9

81.3

81.8

82.6

83.9

Utilities
Electric utilities

114.3
132.4

116.0
134.4

115.7
135.8

113.9
134.9

118.0
139.8

140.7
156.7

141.0
157.4

141.4
158.2

141.7
159.0

142.0
159.8

81.3
84.5

82.3
85.4

81.8
85.9

80.4
84.8

83.1
87.5

Series
Total industry
Manufacturing

85.6
124.7
187.6
181.4
110.3
98.9
147.7
162.9
144.1
152.5

97.4

Note. Data for output are percentages of 1977 output as shown in the Federal
Reserve's seasonally adjusted indexes of industrial production. Capacity is also




105.0
151.3
219.1
237.8
146.3
149.6
182.4
200.8
176.4

112.7

expressed as a percentage of 1977 actual output Capacity utilization
percentages are cafcuktod at ratios of production to capacity.

81.6
82.4
85.6
76.3
75.4
66.1
81.0
81.1
81.7
86.1

86.5
85.8

INDUSTRIAL MATERIALS
Table 3

Capacity Utilization
perce it Of CQDBCitV
Monthly, seasonally adjusted.
1973
High

Series

1975
Low

1978
-80
High

1982
Low

1967
-88
Ave.

1988
Dec

1989
Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

92.0

70.5

89.1

68.5

82.3

84.9

84.2

83.8

83.6

83.7

83.9

83.6

83.5

83.3

82.8

91.8
99.2
106.0
95.7

64.4
67.1
66.4
73.0

89.8
93.6
98.9
97.4

60.9
45.7
36.1
58.8

79.1
77.9
80.7
87.8

82.1
84.6
87.6
99.4

81.3
83.6
84.4
101.5

81.0
79.8
83.7
98.4

81.1
80.6
85.4
99.6

81.3
82.3
85.4
101.2

81.7
82.7
89.0
99.9

81.2
81.9
84.0
96.4

80.3
81.7
84.7
93.5

80.0
77.2
80.2
96.2

79.1
75.0

Nondurable goods materials
Textile, paper, & chem. mat.
Pulp & paper materials
Chemical materials

91.1
92.8
98.4
92.5

66.7
64.8
70.6
64.4

88.1
89.4
97.3
87.9

70.7
68.8
79.9
63.5

83.6
84.1
92.0
81.3

89.8
91.3
98.4
90.7

89.2
90.7
94.5
90.1

88.7
89.6
93.2
88.4

88.7
89.8
93.7
88.5

89.2
90.6
95.0
89.5

88.8
90.1
95.1
88.6

87.5
88.8
95.1
86.7

88.3
89.4
96.3
87.4

88.1
89.1
95.8
87.2

87.8
88.8

Energy materials

94.6

86.9

94.0

82.3

88.9

86.5

86.0

85.5

83.8

83.9

84.3

85.4

86.1

86.1

86.6

1989
Ql

QII

Qlll

QIV

1988
QIV

1989
Ql

QII

Qlll

QIV

Materials
Durable goods materials
Metal materials
Raw steel
Aluminum

Table 4

Output, Capacity, and Capacity Utilization
Quarterly, seasonally adjusted
Output

Capacity

Utilization

1988
QIV

1989
Ql

QII

Qlll

QIV

1988
QIV

128.0

127.6

127.9

128.6

128.5

150.8

151.7

152.6

153.5

154.4

84.9

84.1

83.9

83.8

83.2

Durable goods materials
Metal materials
Raw steel
Aluminum

139.2
94.8
79.5
97.8

138.6
92.3
79.8
98.5

139.0
90.0
76.2
99.1

140.4
91.4
78.2
98.9

138.6
86.9

169.0
109.8
89.2
97.9

170.1
110.2
89.6
98.7

171.3
110.6
90.2
99.2

172.5
111.0
90.8
99.7

173.7
111.4

82.4
86.3
89.1
99.9

81.5
83.8
89.0
99.7

81.1
81.4
84.5
99.8

81.4
82.3
86.1
99.2

79.8
78.0

Nondurable goods materials
Textile, paper, & chem. mat.
Pulp & paper materials
Chemical materials

135.4
138.1
148.6
144.1

136.3
139.2
148.4
145.4

137.1
139.8
146.1
145.7

137.9
141.1
149.8
146.5

138.6
141.5

151.2
151.8
152.3
159.3

152.7
153.5
154.0
161.4

154.2
155.3
155.8
163.7

155.8
157.0
157.6
165.9

157.4
158.8

89.5
91.0
97.6
90.5

89.3
90.7
96.4
90.1

88.9
90.0
93.8
89.0

88.5
89.8
95.1
88.3

88.1
89.1

Energy materials

102.0

100.7

100.7

99.8

101.8

118.7

118.4

118.3

118.1

118.0

86.0

85.0

85.1

84.5

86.3

Series
Materials

Explanatory Notes.
Definition. This release contains estimates of output, capacity, and capacity
utilization for the nation's factories, mines, and electric and gas utilities.
Output data are the Federal Reserve's seasonally adjusted indexes of industrial
production, which express output as percentages of 1977 output The capacity
estimates are expressed as percentages of 19/7 output as well. Capacity
utilization percentages are calculated as ratios of production to capacity. The
capacity indexes are based on a variety of data, including capacity data in
physical units compiled by trade associations, private and government surveys
of capacity growth and utilization rates, and estimates of capital stock growth.
The concept of practical capacity is applied, which is defined as the greatest
level of output mat a plant can maintain within the framework of a realistic
work pattern, taking account of normal downtime, and assuming sufficient
availability of inputs to operate machinery and equipment in place. When the
capacity indexes for individual industries arc aggregated—for example to total
manufacturing—no explicit account is taken of possible general equilibrium
constraints such as emerging industry bottlenecks. Because of the large and
heterogeneous database, changes in utilization rates may be more meaningful in
the analysis of business conditions than any particular level of these rates.
Groupings. Estimates of capacity and industrial production are aggregated to
primary and advanced processing industries, to durable and nondurable
manufacturing industries, and to total manufacturing. The mining,
manufacturing, and utilities estimates aggregate to the total index. Primary
processing includes textile mill products, paper and products, industrial
chemicals, petroleum products, rubber and plastics products, lumber and
products, primary metals, fabricated metal products, and stone, clay, and class
products. Advanced processing includes foods, tobacco products, apparel
products, printing and publishing, chemical products such as drugs and
toiletries, leather and products, furniture and fixtures, machinery, transportation
equipment, instruments, miscellaneous manufactures, and
government-owned-and-operated ordnance facilities. Industrial materials are
items produced and used as inputs by manufacturing plants, mines, and utilities.
Industrial materials include many oi the items included in the primary




processing grouping of manufacturing, as well as some of the output of the
advanced processing industries, mines, and utilities—such as iron ore, crude oil,
semiconductors, and electricity sold to industry.
Perspective. The historical highs and lows in capacity utilization shown in the
tables above are specific to each series and did not all occur in the same month.
Industrial plants usually operate at capacity utilization rates that are well below
100 percent; none of trie broad aggregates has ever reached 100 percent. For
mining, manufacturing, and utilities as a whole, and for total manufacturing,
utilization rates as high as 90 percent have been exceeded only in wartime.
Revisions. Thefirstestimates for a month are published about the 16th of the
following month. These estimates may revise in each of the next three months
as new data become available. After the fourth month, no further revisions are
undertaken until an annual or benchmark revision. The median of the revisions
in the total manufacturing utilization rate between the first and fourth estimate
is 0.3 percentage point; that is, in about half of the cases, the absolute value of
the revision from the first to the fourth estimate is less than 0.3 of a percentage
point
Sources. The basic methodology used to estimate the series is discussed in
Richard D. Raddock, "Revised Federal Reserve Rates of Capacity Utilization,"
Federal Reserve Bulletin Vol. 71 (October 1985), pp. 754-66. Historical
utilization rates since 1967 (1948 in the case of manufacturing) are included in
the statistical supplement to the October 1987 capacity utilization release.
Copies may be obtained from Publications Services, Board of Governors of the
Federal Reserve System, Washington, D.C. 20551.
Rounding. Utilization rates are calculated from unrounded capacity and
production indexes. Aggregates are derived from unrounded detailed
components.
Release schedule for 1990. At 9:15 a.m. on January 17, r^bruary 16, March
16, April 17, May 15, June 15, July 17, August 16, September 14, October 17,
November 14, and December 14.

Notice
This release is available on the day of issue through the
Department of Commerce's online Electronic Bulletin Board.
(202) 377-3870