| 従業員数 | 前年比（％） | |
|---|---|---|
| 4Q26 | 11,526 | +11.6% |
| 4Q25 | 10,332 | +2.3% |
| 4Q24 | 10,104 | +6.2% |
| 4Q23 | 9,515 | -1.5% |
| 4Q22 | 9,662 | +2.4% |
| 4Q21 | 9,431 | +2.0% |
| 4Q20 | 9,247 | +2.0% |
| 4Q19 | 9,065 | +0.7% |
| 4Q18 | 9,003 | +3.2% |
| 4Q17 | 8,722 | +3.0% |
| 4Q16 | 8,466 | +2.7% |
| 4Q15 | 8,240 | -7.6% |
| 4Q14 | 8,919 | -12.3% |
| 4Q13 | 10,175 | -3.2% |
| 4Q12 | 10,513 | -5.9% |
| 4Q11 | 11,172 | +26.9% |
| 4Q10 | 8,801 | - |