| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2026 | 0.7 | 0.83 | 0.61 |
| 2025 | 4.69 | 6.91 | 0.69 |
| 2024 | 2.7 | 7.87 | 1.7 |
| 2023 | 5.85 | 8.21 | 2.95 |
| 2022 | 9.16 | 15.25 | 5.84 |
| 2021 | 5.25 | 9.32 | 3.7 |
| 2020 | 4.9 | 6.12 | 3.9 |
| 2019 | 6.24 | 10.12 | 4.31 |
| 2018 | 16.19 | 23.43 | 6.64 |
| 2017 | 36.61 | 55.28 | 23.27 |
| 2016 | 62.23 | 87.32 | 46.13 |
| 2015 | 52.48 | 91.74 | 23.82 |
| 2014 | 76.26 | 125.18 | 38.69 |
| 2013 | 75.02 | 125.67 | 45.71 |
| 2012 | 127.58 | 207.32 | 37.03 |
| 2011 | 203.22 | 324.68 | 108.34 |
| 2010 | 106.03 | 140.52 | 73.08 |
| 2009 | 69.36 | 84.48 | 53.47 |
| 2008 | 44.48 | 76.23 | 20.08 |
| 2007 | 31.42 | 46.63 | 16.45 |
| 2006 | 15.19 | 25.65 | 4.26 |
| 2005 | 3.53 | 6.57 | 2.01 |
| 2004 | 4.88 | 9.17 | 3.67 |