| 1992 | 1993 | 1994 | |
| 80.6 | 78.0 | 78.9 | |
| Petroleum | 82.4 | 80.3 | 79.9 |
| Manufacturing | 82.5 | 80.9 | 82.3 |
| 99.3 | 99.1 | 97.6 | |
| 76.2 | 73.6 | 73.9 | |
| 50.7 | 51.6 | 59.6 | |
| 90.8 | 91.9 | 91.0 | |
| 79.8 | 78.5 | 86.9 | |
| 93.3 | 94.0 | 94.0 | |
| G | G | G | |
| 91.6 | G | H | |
| 91.9 | 92.3 | 91.9 | |
| 85.4 | 89.4 | 93.4 | |
| 77.0 | 75.9 | 75.9 | |
| 98.0 | 95.9 | 93.3 | |
| H | 79.2 | 82.2 | |
| Wholesale trade | 94.8 | 95.6 | 95.2 |
| 99.5 | 99.8 | 99.8 | |
| 93.2 | 94.0 | 93.5 | |
| Retail trade | 78.4 | 75.9 | 74.9 |
| Finance, except depository institutions | 28.7 | 49.7 | 79.8 |
| Insurance | G | 59.3 | 66.3 |
| Real estate | 77.5 | 76.0 | 73.9 |
| Services | 81.1 | 72.9 | 78.0 |
| 84.6 | 88.0 | 86.6 | |
| 83.7 | 82.7 | 84.9 | |
| 98.4 | F | F | |
| 69.3 | G | H | |
| Agriculture, forestry, and fishing | 60.5 | 66.7 | 64.2 |
| Mining | 77.0 | 73.8 | 80.4 |
| Construction | 81.0 | 80.6 | 80.0 |
| Transportation | 44.3 | 26.8 | 29.0 |
| Communication and public utilities | F | 60.3 | 25.9 |
NOTE.Size ranges are given in cells that are suppressed to avoid disclosure of data of individual companies. The percentage size ranges are: C0.1 to 19.9; E20.0 to 39.9; F40.0 to 59.9; G60.0 to 79.9; H80.0 to 100.