| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 5779.13 |
| 8 | 2016 | 5755.10 |
| 9 | 2015 | 5595.59 |
| 10 | 2014 | 5662.14 |
| 11 | 2013 | 5756.83 |
| 12 | 2012 | 5632.76 |
| 13 | 2011 | 5671.10 |
| 14 | 2010 | 5428.96 |
| 15 | 2009 | 5085.71 |
| 16 | 2008 | 5071.42 |
| 17 | 2007 | 4886.24 |
| 18 | 2006 | 4827.49 |
| 19 | 2005 | 4748.02 |
| 20 | 2004 | 4536.99 |
| 21 | 2003 | 4325.36 |
| 22 | 2002 | 4175.48 |
| 23 | 2001 | 4424.84 |
| 24 | 2000 | 4965.59 |
| 25 | 1999 | 6020.13 |
| 26 | 1998 | 6257.55 |
| 27 | 1997 | 6382.19 |
| 28 | 1996 | 6667.72 |
| 29 | 1995 | 6792.20 |
| 30 | 1994 | 6356.54 |
| 31 | 1993 | 6069.05 |
| 32 | 1992 | 6038.41 |
| 33 | 1991 | 5521.92 |
