| 年份 | 级比 | 级比判断 | |
| 1 | 2010 | 0.990491284 | 1 |
| 2 | 2011 | 1 | 1 |
| 3 | 2012 | 1 | 1 |
| 4 | 2013 | 0.956060606 | 1 |
| 5 | 2014 | 0.944206009 | 1 |
| 6 | 2015 | 0.995726496 | 1 |
| 7 | 2016 | 0.998577525 | 1 |
| 8 | 2017 | 0.987359551 | 1 |
| 9 | 2018 | 0.983425414 | 1 |
| 10 | 2019 | ||
| 范围 | 0.833752918 | 1.199396102 |