| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2026 | 0 | ||
| 2025 | 0 | ||
| 2024 | 0 | ||
| 2023 | 0 | ||
| 2022 | 0 | ||
| 2021 | 0 | ||
| 2020 | 0 | -0.06 | |
| 2019 | 0 | -0.49 | |
| 2018 | 0 | -0.58 | |
| 2017 | 104.18 | 113.18 | 88.83 |
| 2016 | 163.08 | 208.7 | 102.97 |
| 2015 | 224.38 | 408.5 | 103.09 |
| 2014 | 123.37 | 177.49 | 85.12 |
| 2013 | 96.3 | 186 | 42.67 |
| 2012 | 58.12 | 94.36 | 32.7 |
| 2011 | 63.47 | 99.43 | 45.78 |