| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 29817.80 |
| 8 | 2017 | 27645.82 |
| 9 | 2016 | 25802.16 |
| 10 | 2015 | 24137.88 |
| 11 | 2014 | 22973.69 |
| 12 | 2013 | 21850.13 |
| 13 | 2012 | 20494.05 |
| 14 | 2011 | 18618.70 |
| 15 | 2010 | 17343.47 |
| 16 | 2009 | 16559.52 |
| 17 | 2008 | 18634.73 |
| 18 | 2007 | 17281.04 |
| 19 | 2006 | 15024.64 |
| 20 | 2005 | 13343.89 |
| 21 | 2004 | 11761.31 |
| 22 | 2003 | 10565.73 |
| 23 | 2002 | 9756.30 |
| 24 | 2001 | 8861.65 |
| 25 | 2000 | 7840.88 |
| 26 | 1999 | 7199.81 |
| 27 | 1998 | 6878.64 |
| 28 | 1997 | 6308.93 |
| 29 | 1996 | 5636.10 |
| 30 | 1995 | 5341.57 |
| 31 | 1994 | 5011.63 |
| 32 | 1993 | 4722.00 |
| 33 | 1992 | 4759.78 |
| 34 | 1991 | 6761.93 |
| 35 | 1990 | 7447.95 |
