| 序号 | 年份 | x(0) | x(1) |
| 1 | 2011 | 281.83 | 281.83 |
| 2 | 2012 | 262.13 | 543.96 |
| 3 | 2013 | 251.9 | 795.86 |
| 4 | 2014 | 242.1 | 1037.96 |
| 5 | 2015 | 235.56 | 1273.52 |
| 6 | 2016 | 229.17 | 1502.69 |
| 7 | 2017 | 217.97 | 1720.66 |
| 8 | 2018 | 267.7 | 1988.36 |
| 9 | 2019 | 229.17 | 2217.53 |
| 10 | 2020 | 230.39 | 2447.92 |
| 11 | 2021 | 218.09 | 2666.01 |
| 12 | 2022 | 191.18 | 2857.19 |