| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 17.15 | 49.18 | 6.66 |
| 2019 | 21.18 | 40.98 | 6.34 |
| 2018 | 38.81 | 72.13 | 18.62 |
| 2017 | 70.64 | 113.05 | 51.13 |
| 2016 | 205.49 | 451.62 | 107.49 |
| 2015 | 1746.61 | 4338.79 | 152.68 |
| 2014 | 1103.74 | 1661.61 | 215.82 |
| 2013 | 179.95 | 256.94 | 67.33 |
| 2012 | 82.71 | 261.1 | 62.13 |
| 2011 | 179.75 | 359.28 | 113.89 |
| 2010 | 79.06 | 127.6 | 27.32 |
| 2009 | 24.9 | 35.47 | 15.78 |
| 2008 | 20.07 | 34.47 | 9.49 |
| 2007 | 52.21 | 152.44 | 14.94 |
| 2006 | 0 | -1.49 | |
| 2005 | 0 | -1.18 | |
| 2004 | 165.41 | 213.88 | 116.5 |
| 2003 | 0 | -5.7 | |
| 2002 | 67.42 | 79.54 | 47.1 |
| 2001 | 100.08 | 125.87 | 80.22 |
| 2000 | 58.07 | 82.49 | 44.01 |
| 1999 | 85.09 | 110.49 | 56.11 |