| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2022 | |
| 2 | 2021 | |
| 3 | 2020 | |
| 4 | 2019 | |
| 5 | 2018 | |
| 6 | 2017 | |
| 7 | 2016 | |
| 8 | 2015 | |
| 9 | 2014 | |
| 10 | 2013 | |
| 11 | 2012 | 24332.43 |
| 12 | 2011 | 22804.71 |
| 13 | 2010 | 21258.02 |
| 14 | 2009 | 19080.78 |
| 15 | 2008 | 18070.54 |
| 16 | 2007 | 17642.16 |
| 17 | 2006 | 15444.79 |
| 18 | 2005 | 14999.78 |
| 19 | 2004 | 14457.40 |
| 20 | 2003 | 14232.19 |
| 21 | 2002 | 13769.02 |
| 22 | 2001 | 12992.66 |
| 23 | 2000 | 12566.81 |
| 24 | 1999 | 12616.02 |
| 25 | 1998 | 12094.09 |
| 26 | 1997 | 11735.90 |
| 27 | 1996 | 11414.67 |
| 28 | 1995 | 11081.70 |
| 29 | 1994 | 10503.39 |
| 30 | 1993 | 10034.76 |
| 31 | 1992 | 9397.06 |
| 32 | 1991 | 8638.03 |
