| 年份 | 实际值 | 预测值 | 残差 | 相对误差/% |
| 2011 | 281.83 | 281.83 | 0 | 0 |
| 2012 | 262.13 | 257.2 | 4.93 | 1.88 |
| 2013 | 251.9 | 252.32 | 0.42 | 0.16 |
| 2014 | 242.1 | 247.53 | 5.43 | 2.24 |
| 2015 | 235.56 | 242.83 | 7.27 | 3.08 |
| 2016 | 229.17 | 238.22 | 9.05 | 3.94 |
| 2017 | 217.97 | 233.7 | 15.73 | 7.21 |
| 2018 | 267.7 | 229.26 | 38.44 | 14.35 |
| 2019 | 229.17 | 224.91 | 4.26 | 1.85 |
| 2020 | 230.39 | 220.64 | 9.75 | 4.23 |
| 2021 | 218.09 | 216.45 | 1.64 | 0.75 |
| 2022 | 191.18 | 212.34 | 21.16 | 11.06 |