| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 40650.86 |
| 8 | 2016 | 42119.56 |
| 9 | 2015 | 41361.79 |
| 10 | 2014 | 39210.65 |
| 11 | 2013 | 37382.65 |
| 12 | 2012 | 37633.34 |
| 13 | 2011 | 37903.13 |
| 14 | 2010 | 38185.37 |
| 15 | 2009 | 37020.91 |
| 16 | 2008 | 37745.27 |
| 17 | 2007 | 37865.18 |
| 18 | 2006 | 36798.41 |
| 19 | 2005 | 35506.99 |
| 20 | 2004 | 35578.62 |
| 21 | 2003 | 32568.79 |
| 22 | 2002 | 31828.40 |
| 23 | 2001 | 31007.45 |
| 24 | 2000 | 31241.68 |
| 25 | 1999 | 31608.31 |
| 26 | 1998 | 32069.85 |
| 27 | 1997 | 32566.49 |
| 28 | 1996 | 31141.40 |
| 29 | 1995 | 30195.43 |
| 30 | 1994 | 28934.50 |
| 31 | 1993 | 29178.67 |
| 32 | 1992 | 30510.94 |
| 33 | 1991 | 29490.67 |
