年份 | 门槛区间 | |||
1 | 2 | 3 | 总计 | |
2012 | 159 | 143 | 42 | 344 |
| 46.22 | 41.57 | 12.21 | 100.00 |
2013 | 124 | 162 | 58 | 344 |
| 36.05 | 47.09 | 16.86 | 100.00 |
2014 | 84 | 181 | 79 | 344 |
| 24.42 | 52.62 | 22.97 | 100.00 |
2015 | 57 | 172 | 115 | 344 |
| 16.57 | 50.00 | 33.43 | 100.00 |
2016 | 45 | 145 | 154 | 344 |
| 13.08 | 42.15 | 44.77 | 100.00 |
总计 | 469 | 803 | 448 | 1720 |
| 27.27 | 46.69 | 26.05 | 100.00 |