| 一级词 | 二级词 | 三级词 | 四级词 | 五级词 | 六级词 | 七—九级 |
高分组 | 33.18% | 14.11% | 12.16% | 6.20% | 3.71% | 2.87% | 5.70% |
中分组 | 43.16% | 16.90% | 11.06% | 5.30% | 2.73% | 1.68% | 3.38% |
低分组 | 44.26% | 17.31% | 10.58% | 5.23% | 2.40% | 1.47% | 2.68% |