| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 0 | -7.03 | |
| 2023 | 34.08 | 39.88 | 26.41 |
| 2022 | 52.35 | 268.75 | 21.11 |
| 2021 | 20.6 | 77.81 | 6.27 |
| 2020 | 8.43 | 13.87 | 5.01 |
| 2019 | 4.74 | 6.92 | 3.2 |
| 2018 | 6 | 9.34 | 3.2 |
| 2017 | 62.09 | 129.36 | 39.74 |
| 2016 | 1641.66 | 9212.43 | 51.28 |
| 2015 | 1669.12 | 9164.94 | 29.59 |
| 2014 | 30.98 | 44.27 | 18.86 |
| 2013 | 22.45 | 32.64 | 17.24 |
| 2012 | 19.41 | 34.57 | 13.71 |
| 2011 | 22.26 | 28.23 | 14.29 |
| 2010 | 33.87 | 48.63 | 25.57 |
| 2009 | 47.47 | 102.45 | 25.6 |
| 2008 | 78.83 | 153.54 | 15.86 |
| 2007 | 36.15 | 44.69 | 31.91 |
| 2006 | 0 | -0.21 | |
| 2005 | 0 | -0.1 | |
| 2004 | 31.61 | 46.54 | 12.76 |
| 2003 | 39.84 | 52.13 | 31.75 |
| 2002 | 58.03 | 69.56 | 48.03 |
| 2001 | 84.55 | 108.54 | 58.85 |
| 2000 | 66.98 | 86.08 | 46.29 |
| 1999 | 135.39 | 175.19 | 90.85 |
| 1998 | 66.43 | 83.29 | 39.74 |