| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 20963.82 |
| 8 | 2016 | 18940.59 |
| 9 | 2015 | 17045.90 |
| 10 | 2014 | 16139.86 |
| 11 | 2013 | 16315.61 |
| 12 | 2012 | 16121.34 |
| 13 | 2011 | 14974.55 |
| 14 | 2010 | 14703.62 |
| 15 | 2009 | 13586.14 |
| 16 | 2008 | 12415.94 |
| 17 | 2007 | 11355.66 |
| 18 | 2006 | 10312.35 |
| 19 | 2005 | 10019.99 |
| 20 | 2004 | 9609.01 |
| 21 | 2003 | 8914.48 |
| 22 | 2002 | 8586.24 |
| 23 | 2001 | 8289.38 |
| 24 | 2000 | 7937.96 |
| 25 | 1999 | 7792.66 |
| 26 | 1998 | 7861.23 |
| 27 | 1997 | 7631.99 |
| 28 | 1996 | 7559.76 |
| 29 | 1995 | 6795.68 |
| 30 | 1994 | 6366.91 |
| 31 | 1993 | 5870.79 |
| 32 | 1992 | 5278.71 |
| 33 | 1991 | 4527.26 |
| 34 | 1990 | 2990.34 |
