| 従業員数 | 前年比（％） | |
|---|---|---|
| 4Q25 | 20,174 | +2.3% |
| 4Q24 | 19,721 | +2.3% |
| 2Q24 | 19,840 | +0.3% |
| 4Q23 | 19,283 | -2.3% |
| 2Q23 | 19,773 | -3.4% |
| 4Q22 | 19,744 | -2.8% |
| 2Q22 | 20,470 | -2.3% |
| 4Q21 | 20,308 | -2.2% |
| 2Q21 | 20,942 | -3.0% |
| 4Q20 | 20,760 | -3.9% |
| 2Q20 | 21,588 | -3.0% |
| 4Q19 | 21,600 | +28.7% |
| 2Q19 | 22,247 | +28.9% |
| 4Q18 | 16,785 | -0.4% |
| 2Q18 | 17,253 | -0.6% |
| 4Q17 | 16,860 | +1.1% |
| 2Q17 | 17,355 | +1.5% |
| 4Q16 | 16,674 | +1.4% |
| 2Q16 | 17,092 | - |
| 4Q15 | 16,436 | -0.6% |
| 4Q14 | 16,536 | -1.7% |
| 4Q13 | 16,826 | -0.3% |
| 4Q12 | 16,881 | - |