| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | |
| 8 | 2016 | |
| 9 | 2015 | |
| 10 | 2014 | |
| 11 | 2013 | 18655.38 |
| 12 | 2012 | 18030.05 |
| 13 | 2011 | 18006.85 |
| 14 | 2010 | 18155.83 |
| 15 | 2009 | 18483.80 |
| 16 | 2008 | 18309.51 |
| 17 | 2007 | 17744.99 |
| 18 | 2006 | 17647.46 |
| 19 | 2005 | 16571.79 |
| 20 | 2004 | 15901.65 |
| 21 | 2003 | 15828.45 |
| 22 | 2002 | 15257.12 |
| 23 | 2001 | 14788.60 |
| 24 | 2000 | 14433.23 |
| 25 | 1999 | 14665.20 |
| 26 | 1998 | 14620.35 |
| 27 | 1997 | 14561.61 |
| 28 | 1996 | 14692.62 |
| 29 | 1995 | 14779.14 |
| 30 | 1994 | 14790.66 |
| 31 | 1993 | 14772.97 |
| 32 | 1992 | 14945.18 |
| 33 | 1991 | 15089.67 |
