| 年份 | Y | t1 | r1 |
| 2015 | 53179.00 | 55035.33 | −1856.33 |
| 2016 | 51580.00 | 54842.76 | −3262.76 |
| 2017 | 52992.00 | 54795.96 | −1803.96 |
| 2018 | 53548.00 | 54884.20 | −1336.20 |
| 2019 | 56941.00 | 55367.24 | 1573.76 |