| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 246.99 | 329.76 | 129.98 |
| 2018 | 74.35 | 159.1 | 44.17 |
| 2017 | 104.54 | 175.15 | 57.04 |
| 2016 | 130.93 | 229.89 | 99.94 |
| 2015 | 297.08 | 597.85 | 156.16 |
| 2014 | 164.13 | 358.34 | 64.81 |
| 2013 | 80.42 | 101.21 | 64.39 |
| 2012 | 0.00 | -38.89 | |
| 2011 | 1,065.45 | 1609.8 | 610.3 |
| 2010 | 1,331.31 | 2219.88 | 909.71 |
| 2009 | 1,514.43 | 1587.09 | 1401.97 |
| 2008 | 64.21 | 85.58 | 39.13 |
| 2007 | 112.69 | 225.36 | 57.52 |
| 2006 | 63.12 | 88.85 | 36.58 |
| 2005 | 26.79 | 38.16 | 15.72 |
| 2004 | 43.29 | 57.91 | 30.65 |
| 2003 | 41.41 | 50.95 | 28.92 |
| 2002 | 34.10 | 41.24 | 24.48 |
| 2001 | 26.42 | 32 | 19.6 |
| 2000 | 40.50 | 50.73 | 30.34 |
| 1999 | 35.25 | 72.55 | 25.45 |