| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 1,251.14 | 1493.55 | 1010.12 |
| 2018 | 306.91 | 548.38 | 177.96 |
| 2017 | 495.04 | 606.47 | 407.36 |
| 2016 | 0.00 | -23.07 | |
| 2015 | 507.17 | 713.43 | 393.18 |
| 2014 | 250.35 | 393.81 | 131.94 |
| 2013 | 125.68 | 507.15 | 57.65 |
| 2012 | 0.00 | -31.34 | |
| 2011 | 639.79 | 861.04 | 518.43 |
| 2010 | 651.82 | 1225.36 | 565 |
| 2009 | 0.00 | -16.47 | |
| 2008 | 419.90 | 731.17 | 149.92 |
| 2007 | 673.58 | 1106.68 | 431.7 |
| 2006 | 326.56 | 619.12 | 140.08 |
| 2005 | 424.80 | 507.89 | 301.73 |
| 2004 | 249.44 | 573.43 | 116.38 |
| 2003 | 0.00 | -14.83 | |
| 2002 | 208.21 | 239.65 | 182.27 |
| 2001 | 89.59 | 154.11 | 55.05 |
| 2000 | 79.38 | 128.65 | 44.97 |
| 1999 | 39.86 | 58.05 | 27.58 |