| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 45031.54 |
| 8 | 2017 | 43050.31 |
| 9 | 2016 | 40920.63 |
| 10 | 2015 | 38578.82 |
| 11 | 2014 | 37383.93 |
| 12 | 2013 | 36309.56 |
| 13 | 2012 | 35128.28 |
| 14 | 2011 | 34682.18 |
| 15 | 2010 | 33014.13 |
| 16 | 2009 | 31949.66 |
| 17 | 2008 | 32596.64 |
| 18 | 2007 | 31140.13 |
| 19 | 2006 | 29226.89 |
| 20 | 2005 | 26893.74 |
| 21 | 2004 | 25920.16 |
| 22 | 2003 | 24757.58 |
| 23 | 2002 | 24228.05 |
| 24 | 2001 | 23211.91 |
| 25 | 2000 | 22106.73 |
| 26 | 1999 | 20768.23 |
| 27 | 1998 | 19968.43 |
| 28 | 1997 | 19070.60 |
| 29 | 1996 | 18350.66 |
| 30 | 1995 | 17755.33 |
| 31 | 1994 | 16950.97 |
| 32 | 1993 | 16203.09 |
| 33 | 1992 | 15976.24 |
| 34 | 1991 | 15561.86 |
| 35 | 1990 | 14969.98 |
