| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 3.43 | 6.12 | 1.96 |
| 2024 | 1.35 | 4.78 | 0.58 |
| 2023 | 0.97 | 1.15 | 0.85 |
| 2022 | 0.99 | 1.19 | 0.64 |
| 2021 | 1.25 | 2.54 | 0.86 |
| 2020 | 1.25 | 1.64 | 0.94 |
| 2019 | 1.61 | 2.1 | 1.02 |
| 2018 | 1.6 | 2.85 | 1.06 |
| 2017 | 8.55 | 20.84 | 2.3 |
| 2016 | 79.48 | 251.78 | 13.4 |
| 2015 | 198.88 | 287.04 | 162.59 |
| 2014 | 117.81 | 201.56 | 49.73 |
| 2013 | 62.34 | 72.6 | 53.42 |
| 2012 | 11.92 | 57.31 | 1.26 |
| 2011 | 1.67 | 2.24 | 1.26 |
| 2010 | 1.84 | 2.68 | 1.27 |
| 2009 | 1.31 | 2.51 | 0.54 |
| 2008 | 1.19 | 2.65 | 0.38 |
| 2007 | 1.9 | 2.98 | 0.99 |
| 2006 | 1.2 | 1.67 | 0.88 |
| 2005 | 0.97 | 1.26 | 0.76 |
| 2004 | 1.33 | 2.46 | 0.94 |