| 従業員数 | 前年比（％） | |
|---|---|---|
| 4Q25 | 23,125 | +0.9% |
| 4Q24 | 22,911 | +2.0% |
| 2Q24 | 23,094 | +2.3% |
| 4Q23 | 22,465 | +2.0% |
| 2Q23 | 22,565 | +0.7% |
| 4Q22 | 22,024 | -0.5% |
| 2Q22 | 22,408 | +0.5% |
| 4Q21 | 22,139 | +2.2% |
| 2Q21 | 22,296 | +2.0% |
| 4Q20 | 21,658 | +0.7% |
| 2Q20 | 21,867 | -3.9% |
| 4Q19 | 21,498 | -3.8% |
| 2Q19 | 22,751 | +0.6% |
| 4Q18 | 22,351 | +0.9% |
| 2Q18 | 22,622 | +2.0% |
| 4Q17 | 22,143 | +1.3% |
| 2Q17 | 22,182 | +4.3% |
| 4Q16 | 21,852 | +4.2% |
| 2Q16 | 21,262 | - |
| 4Q15 | 20,965 | +0.4% |
| 4Q14 | 20,890 | +3.5% |
| 4Q13 | 20,189 | -0.6% |
| 4Q12 | 20,305 | - |