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FEDERAL RESERVE statistical release
G.3 (402)

For Immediate release

October 17, 1984

CAPACITY UTILIZATION
Manufacturing, Mining, Utilities, and Industrial Materials

Capacity utilization in manufacturing, mining, and utilities fell
0.7 percentage point in September to 81.9 percent. This decline brought the
industrial utilization rate below its 1967-82 average of 82,4 percent. For
the third quarter as a whole the industrial utilization rate was 82.4 percent,
up from 81.7 percent one quarter earlier and from 77.3 percent a year earlier.
All three major components of the total index decreased in September.
Manufacturing, the dominant component, fell by 0.7 percentage point, utilities
by 0.5 percentage point, and mining by 0.1 percentage point. The decrease in
utilization was broad-based with durable manufacturing accounting for the
larger part of the decline. In part because of a strike, motor vehicle
manufacturing played a major role in the overall September fall off. The drop
in this industry's capacity utilization was 5.4 percentage points to 82.5
percent, still above its 1967-82 average of 78.6 percent. In contrast, the
utilization rate for aerospace and miscellaneous transportation equipment
rebounded from an August fall of 0.5 percentage point to a September gain of
0.7 percentage point.
Utilization rates for industrial materials fell 1.1 percentage points
in September to 82.0 percent, which was more than one percentage point below its
1967-82 average. Durable goods materials, especially metals, led the decline.

Capacity Utilization: Summary
Percent of capacity, seasonally adjusted
Series
Total Industry

1973
BIGH

1975
LOW

1978
-80
HIGH

1982
LOU

1967
-82
A¥ER.

1984
«J0M£ I JOLY

A0G

S

SEP

88.4

7K1

87,3

69.6

82.4.

82,1

82.7

82.6

81.9

Manufacturing
Durable
Nondurable

87*9
87*9
89.1

69.0
67.6
71.0

87*5
89.4
87.2

68.8
64*8
73.8

81.8.
80.5.
83.9.

82.2
81.7
82.9

82.9
82.6
83.1

82-8
82.9
82.8

82,1
82.0
82.3

Mining
Utilities

91,8
94*9

86-0
32.0

90.4
86.3

69.6
79.0

86.5.
88.6.

76.6
85.4

78.1
84.1

77.5
84.1

77.4
83.6

92,6

69.3

88.9

66.6

83.3.

82.9

83. 1

83.1

82.0

Industrial Materials




CAPACITY UTILIZATION

SEPTEMBER DATA

SEASONALLY ADJUSTED, PERCENT

110
TOTAL INDUSTRY

TOTAL MATERIALS
90

70

50
110

MINING

UTILITIES

90

70

50
110
MANUFACTURING

REFINED PETROLEUM
PRODUCTS

70

50
110
HOTOR VEHICLES
ANO PARTS
90

70

50

30
1969

1972




1975

1978

1981

1984

1969

1972

1975

1978

1981

1984

MANUFACTURING, MINING AND UTILITIES
Table 1

Capacity Utilization
Monthly, seasonally adjusted, percent of capacity
1973
Series
HIGH

1975
LOW

Total Industry

86.

Manufacturing

4
87.9

Primary processing
Advanced processing
Durable manufacturing
Stone, clay and glass products
Iron and steel, subtotal
Nonferrous metals, subtotal
Fabricated metal products
Nonelectrical machinery
Electrical machinery
Motor vehicles and parts
Autos
Aerospace and misc. trans, eqp.
instruments
Nondurable manufacturing
Foods
Textile mill products
Paper and products
Chemicals and products
Petroleum products
Rubber and plastics products

93. 7
85. 5
87.
88.
103.
99.

1967
YEAfi
-82
AGO
AVER. 1 MONTH 1

71.1

J T978 | 1982
I LOW
I -80
1
1 HIGH
i
| 69.6
87.3

82.4

69.0

| 87.5

! 68.8

68.2
69.4

1
91.4
| 66.2
| 8 5 . 9 | 70.0

9
0
3
0
se- 3
3
88. 7
98. 7
81
76-0
89.6

67.6
64.0
69.2
60.8
65.7
71.8
62.3
51.3
MA
68.0
73.7

1
7
4
7
2
1
4

71.0
77.2
61.3
69. 1
65.9
84.6
62.1

89.
85.
95.
96.
86.
99.
97.

i
i
I
I

89-4 |
90-4 |
97-5 |
98.2 |
|
90.0
83. 1 S
|
90.6
S 94.5 |
!
91.6
I 93.9 |
[
92.3
87.2
85.2
91.3
95. 1
83.6
93.0
91.5

1984
JAS |

FIB 1

HAfi I

APE 1

flA'

JUNE]

JDLXI

AUG 1

78.2

80.1

80.7

80.9

81.3

81. 5

82. 1

82.7

82. 6

81 . 9

81-8

78.4

80.1

80-9

81.0

81.5

81. 7

82.2

82.9

82. 8

82 . 1

34.0
80.6

79.7
77.8

80.6
80.0

82.2
80.4

82.2
80.6

82.2
81.0

82. 4
81.2

82.6
81.9

82.4
83.1

81. 9
83. 2

81 . 2
82 . 5

76.0
75-3
65.1
76.0
71.3
68.8
86.5
78.9
80-5
68.7
75.9

79-2
77.9
67.6
77.8
73.4
73.2
89.9
87.1
83.6
71.7
77.4

80.1
79.0
72.3
81.2
73.9
73.7
91.1
86.1
83.3
73.1
77.7

80.4
78.7
71.3
81.6
74.9
74.0
91.4
86-6
84.1
72.9
78.0

80.9
78.4
71.5
85.4
75.1
75.3
91.9
84.4
79.2
73.6
78.6

81. 0
78.6
71. 5
83.8
75. 6
76. 9
91. 3
84. 7
77. 9
73. 3
78. 8

81.7
77.9
72.0
83.3
76.7
78.2
91.4
85.7
79.6
74.6
80.0

82.6
78.3
66.4
85.2
77.6
79.9
93.1
87.4
80.8
76.5
81. 1

82. 9
77.8
65. 8
83. 3
77. 2
81. 3
92.9
87.9
77. 9
76. 0
81. 1

82 . 0

76 . 3
80 . 6
92 . 3
82 . 5
70 . 0
76 . 7
81 . 3

83.9
83.3
86.2
89.6
78.7
89.6
88.3

81.5
78.8
91.2 j
96.3
72.2
77.3
92.0

81.1
78.7
88.0
96.7
70.7
73.9
93.0

81.8
78.8
86.9
99.0
71.6
79.5
93.1

81.8
79.1
87.4
97.1
71.6
79.3
94.0

82.3
79.9
85.0
96.0
72.5
79.4
94.6

82. 4
80. 2
85. 1
96. 7
72.3
80. 2
95.7

82.9
80.5
84.9
96.7
73.2
80. 1
97.1

83. 1
80.8
84.1
97.3
73.8
78.5
96.6

82. 8

82 . 3

84.
96.
73.
78.
95.

80.5
64.8
63.0
78.4
38.8 | 8 2 . 3
83.8
62.1
79.6
60.7
61.6
79.8
74-7
80.0
46.1
78.6
MA
35-8
69.1
78. 1
73.1
83-5

1 73.8
76.5
73.0
| 84.2
64.0
71.5
74.0

I

3
0
9
9
8

SEP

78 . 3

Mining

91. 8 <

86.0

90.4

69.6

86.5 j

70.8 !

75.4

74.9

74.7

74.3

75- 4

76.6

78.1

77. 5

77 . 4

Utilities
Electric utilities

94. 9
97. 6

82.0
82.1

86.8
87.0

79.0
77.9

88.6 j
89.8

84.8
83.9

84.8
84.0

82.5
81.0

84.0
82.6

85.0
83.6

84. 7
83. 1

85.4
84.0

84. 1
82.3

84-1
82.2

83 . 6
81 . 6

II

I I I

1983
I I I

IV

1984
I

|

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

1983
I I I

OUTPUT
1984
I

IV

1
1
m i

1983
I I I

163.1

165.7

196.4

II

ckikcj.il
1984
I

IV

:

201.1

77.3

I
78.81

80.5

81.7

82.4

197.5

198.4J

199.5

201-0

202. 5J

77.4

78.9J

80.7

81.8

82.6

195.3
198.6

195.81 196.5
199.7| 201. 1

197-2
203.0

198.0
204.9

78.3
76.9

79.9J
78.2j

81.7
80.3

82.4
81.4

82.0
82.9

186. 1
201.1
120. 1
148.4
178.3
229.6
225.7
191.7
167.8
145.2
215.1

186.81
201.9!
120. 1|
148.4|
179.01
231.0J
227.4J
190.7J
167.3J
146.31
216.21

187.8
203.0
119.0
148.4
179.8
232.0
230.4
190.9
168.7
147.2
217. 1

189.1
204.4
116.7
148.4
180.6
232.6
234.9
192.3
170.5
148. 1
217.9

190.4

74.7
73.8
62.5
74.7
70.3
68.2
84.7
76.1
78.8
68.3
75.1

76.9J
75.7|
66.0j
78.61
71.6J
70.0J
87.91
80.8}
78.7J
70.41
75.7|

79.9
78.5
70.4
80.2
74.0
73.6
90.8
86.6
83.6
72.6
77.7

81.2
78.3
71.7
84.2
75.8
76.8
91.5
84.9
78.9
73.8
79. 1

82.5

213.9
200.2
163.2
176.9
309.4
162.1
337.7

215.01
201.71
163.01
177.4J
312.11
161.31

216.5
203.1
163.7
178.5
314.0
160.4
342.3

218.2
204-6
165.2
180.1
315.1
159.4
349.1

80,7
7S.5
90.4
95.0
71.4
76.6
90.2

81.3|
78.1|
89.8|
96.5J
72.11
75. 1J
91.9J

61.6
78.9
87.5
97.6
71.3
77.6
93.4

82.5
80.2
85.0
96. 5
72.7
79.9
95.8

82.3

73.11

75.0

75.4

77.7

84.01
82.8}

83.8
82.5

85.0
83.6

83.9
82.0

I

155.51

159. 3

Manufacturing

152.8

156.5J
I
156.
156.4J
1|

161. 0

164.4

167.3

152.8
152.8

160. 5
161. 7

162.5
165.2

162.3
169.9

139.1
148.5
75.0
110.9
125.4
156.6
191.1
145.8
132.3
99.2
161.5

143.8J
152.81
79.21
116-6|
128.2|
161.81
200-01
154.21
132.11
103.0J
163.5J

150. 2
159- 5
83. 7
119- 0
133. 1
170- 8
209.4
165. 5
141.2
106. 8
168. 7

153.6
160.1
83.7
124.9
136.9
178.6
215.0
163.4
134.5
109.4
172.4

157.1

172.7
159.1
147.6
168.0
220.9
124.2
304.6

174.81
157-51
146.51
171-21
225.0J
121.11
311.41

176- 7
160. 2
143. 2
174. 2
223.8
124. 5
319. 8

180.1
164.1
140.4
173.7
229.1
127.4
334.4

182.0

Mining

116.1

1
1 2 1 . 0| 124- 2

125.1

129.0

165. 4

338.51
165.51

165.7

165.9

166.1

70.2

Utilities
Electric utilities

178.2
203.6

178.4|
203.0)

179. 2
203-8

183.1
208.0

182.0
205.9

211.1
243.0

1 213.8
244191 246.9

215.3
248.9

216.8
251.0

84.4
83.8

Durable manufacturing
Stone, clay and glass products
Iron and steel, subtotal
Nonferrous metals, subtotal
Fabricated metal products
Nonelectrical machinery
Electrical machinery
Motor vehicles and parts
Autos
Aerospace and misc. trans, eqp.
instruments
Nondurable manufacturing
Foods
Textile mill products
Paper and products
Chemicals and products
Petroleum products
Rubber and plastics products




139.8
187-9
222-5
166.5
131.4
113.9
177.5

124.5

III

199.7

151.8

Primary processing
Advanced processing

II

197. 3 I 198.4

Total Industry

181.4
233.1
239.3
193.8
172.3
149.0
218.8
220.0

158.5

77.0
80.6
93.0
86.0
76.2
76.4
81. 1

78.6

INDUSTRIAL MATERIALS
Table 3

Capacity Utilization
Monthly, seasonally adjusted, percent of capacity
1973
HIGH
Series

Industrial Materials

IEAB ]
AGO J
HONTH|
!

1984
JAN |

FEB |

HAB |

APE |

HAY |

JOSE|

JOLII

AOG f

SEP

92.6

1967 |
1975 1 1978
1982
-82
- 8 0 | LOS
i SIGH |
I AVER.I
i
66.6
83.3
69.3 | 88.9

78.6 J

80.6

81.9

82.2

82.5

82.7

82.9

83.1

83.1

82.0

LOW

91.4

\
63.5 ! 88.4

59-8

79.7

I
75.2 J

78.5

80.5

80.7

81-5

81-5

82.0

82.5

82.7

81.0

Metal materials

97.8

66.0

95.4

46.2

82.2

65.5

67.3

71.1

71.5

73.0

72.2

72.1

70.8

70.4

67.6

Raw steel
Aluminum

107.1
96.8

68.0
I 73.4

102.9
97.9

40-2
I 57-9

84.8
90.6

63.3
73.6

70.0
79.8

74.0
82.0

72-6
84.3

74.5
85.7

74.2
87.0

68.9
86.6

66.2
83.6

62.9
82.5

94.4

67.4

91.7

86.5

82.9

81.9

83.0

83.6

83.2

83.9

83.3

83.2

82.9

82.5

95.1

! 65.4

92-3

86.5

82.6

81.5

82.8

83.1

82.7

83.3

82.6

82.7

82.5

82.0

93.4 | 99.0 t 99.3
99.4 | 72.4 | 97.9 ! 86.3
91.3 | 64.0 | 8 5 . 1 I. 77.8 I 76.7
95.5 | 6 4 . 2

99.0
78.6

96.8
79.5

98.5
78.9

99.8
79.0

99.8
78.4

101.1
78.4

98.7
78.4

84.1

84.1

84.5

84.3

85.0

85.2

84.9

Durable goods materials

•

Nondurable goods materials
Textile, paper, and chemical materials
Paper materials
Chemical materials

94.5

Energy materials

I

70-7
I
! 68.6

I
I
I
| 84.4 i 88.9 \ 78.5
| 88.5 I 81.6

84.4

84.3

L

Table 4

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

1983

III

150.3) 157.6
•
93.81 97.3
1
82.81 84. 5
128.64 137.5

162.0

163. 71 196.0

183.51 183*7
I
193.21 193- 2

186.6

186,

195.9

162.8
227.8

167.4| 165.8
235. QJ 236.7
1

168.5
240.4

1 166.9
298.3

127.4

127.81 131.2

132. 4

1
133. 11 154.7

144. 2
89-3

Raw steel
Aluminum

72.7
119.0
179. 1

Paper materials
Chemical materials

Energy materials

III!

163. 2 i 193.4

Metal materials

Textile, paper and chemical materials

I I

1983
III

162.1

149.9
Durable goods materials

OUTPUT
1984
If
I
1
154.3] 158.8
1

188.0

100.3

I I

79.6|

198. 3

199, 5 |

73.6

1
i
76.5J

138.5

137..91

63.9

219.6

2 2 0 . 6 | 221.8

223. 4

2 3 2 . 7 | 234.2

236.2

1 6 7 - 7 | 168*5
3 0 0 . 1 | 302.3
I

169.5
305.2

1 5 5 . 3 | 155.8

156.4

t

Groupings. Estimates of capacity and industrial production for manufacturing industries are
aggregated to primary processing 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. Industrial materials are Items produced and used as inputs by manufacturing plants, mines, and utilities. Industrial materials include many of
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.

UTILIZATION
1984
I?
I

77.5

196.21 231.6

83-1
144.9

0| 139.8
I
1 118.8
167.7

1983
III

197. 2 |

114.6
167.7

96.

1
1
IIII

195.9

196.51 197-1
1
139-61 139-1
J
117. 1
167*7| 167.7

Definition. This release contains estimates of output, capacity, and capacity utilization for the
nation's factories, mines, and electric and gas utilities. Estimates of actual output and capacity output are expressed as percentages of 1987 actual output. Estimates of capacity utilization
are calculated as ratios, In percent, of the Federal Reserve's seasonally adjusted Indexes of Industrial production to the Indexes of capacity. The capacity Indexes are based on a variety of
data, Including capacity data in physical units, surveys of capacity growth and utilization rates,
and estimates of capital stock growth. Instead of a formal definition of capacity the concept of
practical capacity is applied, which Is the greatest level of output that 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 are aggregated—for example to total manufacturing—no explicit account is taken of possible general equilibrium constraints such as emerging
industry bottlenecks.




CAPACITY
1984
I?
I
1
194.7
194.01

I I

I I I

81. 6

82.7

82. 8

79. 9

81.7

82. 0

70. 0

72.4

69. 6

61.2
70.9

67.2|
1
69.9|
76.7|

72. 2
82. 0

72.5
86.4

225. 21

81.5

83.2J

82. 8

83.5

82. 9

238. 2 |

81.2

83.0|

82. 5

82.9

82. 4

1
1

97.5
76.4

98. 4
78. 3

99-4
78.8

1
157.01
§

82.3

99.8|
78.31
1
1
82.3!

84. 2

84.6

1

j

84.8

1

Perapeetive. The historical highs and lows In capacity utilization shown In the tables above are
specific to • • c h 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 the 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. The first estimates for a month are published about the 17th 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 of a 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 methodology used to estimate the series is discussed in New Federal Reserve
Measures of Capacity and Capacity Utilization, Federal Reserve Bulletin, July 1983. Revised
data from 1967-82 are included in the statistical supplement to the July 1983 capacity utilization release, which may be obtained from Publications Services, Board of Governors of the
Federal Reserve System, Washington, D.C. 20551.
Rounding. The rounding algorithms applied to the capacity, output, and utilization rate series
are independent. Aggregates are derived from unrounded detailed components.
Release schedule for 1984. Approximately 11 a.m. on February 16, March 16, April 16, May 16,
June 18, July 16, August 16, September 17, October 17, November 16, and December 17.