| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 14692.54 |
| 8 | 2016 | 14576.25 |
| 9 | 2015 | 14197.39 |
| 10 | 2014 | 13684.30 |
| 11 | 2013 | 12339.59 |
| 12 | 2012 | 12236.53 |
| 13 | 2011 | 12044.94 |
| 14 | 2010 | 12245.95 |
| 15 | 2009 | 10931.33 |
| 16 | 2008 | 10093.40 |
| 17 | 2007 | 10006.00 |
| 18 | 2006 | 9209.08 |
| 19 | 2005 | 8694.99 |
| 20 | 2004 | 8165.52 |
| 21 | 2003 | 7959.59 |
| 22 | 2002 | 7824.76 |
| 23 | 2001 | 7886.46 |
| 24 | 2000 | 7970.99 |
| 25 | 1999 | 8529.06 |
| 26 | 1998 | 8702.24 |
| 27 | 1997 | 9452.36 |
| 28 | 1996 | 10276.01 |
| 29 | 1995 | 9877.96 |
| 30 | 1994 | 10669.82 |
| 31 | 1993 | 10459.78 |
| 32 | 1992 | 9133.17 |
| 33 | 1991 | 8292.23 |
