| 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 | 34740.09 |
| 12 | 2012 | 34128.41 |
| 13 | 2011 | 33854.30 |
| 14 | 2010 | 34076.19 |
| 15 | 2009 | 35460.04 |
| 16 | 2008 | 35811.67 |
| 17 | 2007 | 35934.69 |
| 18 | 2006 | 35090.30 |
| 19 | 2005 | 33179.14 |
| 20 | 2004 | 32554.01 |
| 21 | 2003 | 31625.50 |
| 22 | 2002 | 30155.19 |
| 23 | 2001 | 29069.47 |
| 24 | 2000 | 28653.84 |
| 25 | 1999 | 28312.41 |
| 26 | 1998 | 27814.76 |
| 27 | 1997 | 26884.45 |
| 28 | 1996 | 26346.17 |
| 29 | 1995 | 26184.59 |
| 30 | 1994 | 24665.71 |
| 31 | 1993 | 25150.27 |
| 32 | 1992 | 24502.00 |
| 33 | 1991 | 23484.35 |
