| 生産 | 出荷 | 在庫 | ||
| 1998 | II | 97.6 | 98.9 | 105.8 |
| III | 97.8 | 99.0 | 103.5 | |
| IV | 96.7 | 98.5 | 99.7 | |
| 1999 | I | 98.2 | 100.2 | 97.8 |
| II | 97.8 | 99.1 | 96.1 | |
| III | 100.4 | 102.1 | 95.0 | |
| IV | 101.8 | 104.1 | 93.4 | |
| 2000 | I | 102.5 | 104.4 | 95.3 |
| II | 104.5 | 107.0 | 95.5 | |
| III | 106.1 | 108.5 | 95.0 | |
| IV | 106.7 | 108.6 | 95.9 | |
| 2001 | pI | 102.8 | 104.7 | 98.1 |
| 2000 | 9 | 104.9 | 107.1 | 95.0 |
| 10 | 106.4 | 108.2 | 96.0 | |
| 11 | 106.1 | 108.3 | 95.9 | |
| 12 | 107.6 | 109.3 | 95.9 | |
| 2001 | 1 | 102.9 | 104.8 | 96.3 |
| 2 | 103.9 | 106.1 | 97.4 | |
| p3 | 101.7 | 103.3 | 98.1 | |