~6年 | 66 | 3 | 43 | 20 | 6 | 22 | 38 | 39 | 6 | 21 |
% | 11.4 | 4.5 | 65.2 | 30.3 | 9.1 | 33.3 | 57.6 | 59.1 | 9.1 | 31.8 |
~7年 | 21 |
| 8 | 13 |
| 8 | 13 | 14 | 3 | 4 |
% | 3.6 |
| 38.1 | 61.9 |
| 38.1 | 61.9 | 66.7 | 14.3 | 19.0 |
7年↑ | 31 | 1 | 11 | 19 |
| 9 | 22 | 18 |
| 13 |
% | 5.4 | 3.2 | 35.5 | 61.3 |
| 29.1 | 70.9 | 58.1 |
| 41.9 |
合计 | 577 | 150 | 339 | 88 | 237 | 208 | 132 | 384 | 61 | 132 |
% |
| 26.0 | 58.8 | 15.2 | 41.1 | 36.0 | 22.9 | 66.6 | 10.6 | 22.8 |