| 従業員数 | 前年比（％） | |
|---|---|---|
| 4Q26 | 55,712 | +10.6% |
| 4Q25 | 50,390 | +3.9% |
| 4Q24 | 48,483 | -2.6% |
| 4Q23 | 49,768 | +1.9% |
| 4Q22 | 48,831 | 0.0% |
| 4Q21 | 48,807 | +3.6% |
| 4Q20 | 47,133 | +4.9% |
| 4Q19 | 44,947 | +5.9% |
| 4Q18 | 42,460 | +6.8% |
| 4Q17 | 39,770 | +6.9% |
| 4Q16 | 37,191 | +6.6% |
| 4Q15 | 34,903 | +7.0% |
| 4Q14 | 32,628 | +7.5% |
| 4Q13 | 30,361 | +11.9% |
| 4Q12 | 27,130 | +3.1% |
| 4Q11 | 26,310 | -0.9% |
| 4Q10 | 26,542 | - |