| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 7395.61 |
| 8 | 2016 | 7324.14 |
| 9 | 2015 | 7112.64 |
| 10 | 2014 | 6712.25 |
| 11 | 2013 | 6481.29 |
| 12 | 2012 | 6338.62 |
| 13 | 2011 | 5999.25 |
| 14 | 2010 | 5713.58 |
| 15 | 2009 | 5478.06 |
| 16 | 2008 | 5297.82 |
| 17 | 2007 | 4905.01 |
| 18 | 2006 | 4686.30 |
| 19 | 2005 | 4427.08 |
| 20 | 2004 | 4160.35 |
| 21 | 2003 | 3990.69 |
| 22 | 2002 | 4016.34 |
| 23 | 2001 | 3671.42 |
| 24 | 2000 | 3490.83 |
| 25 | 1999 | 3332.31 |
| 26 | 1998 | 3308.70 |
| 27 | 1997 | 3211.77 |
| 28 | 1996 | 3305.33 |
| 29 | 1995 | 3543.79 |
| 30 | 1994 | 2132.14 |
| 31 | 1993 | 3523.63 |
| 32 | 1992 | 3936.71 |
| 33 | 1991 | 3797.19 |
