| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 28628.56 |
| 8 | 2017 | 25777.90 |
| 9 | 2016 | 24012.40 |
| 10 | 2015 | 23994.01 |
| 11 | 2014 | 25688.23 |
| 12 | 2013 | 26019.73 |
| 13 | 2012 | 24273.52 |
| 14 | 2011 | 22789.54 |
| 15 | 2010 | 20490.13 |
| 16 | 2009 | 19389.94 |
| 17 | 2008 | 20163.61 |
| 18 | 2007 | 16648.24 |
| 19 | 2006 | 14912.23 |
| 20 | 2005 | 11822.35 |
| 21 | 2004 | 10226.77 |
| 22 | 2003 | 9254.54 |
| 23 | 2002 | 8037.47 |
| 24 | 2001 | 7361.36 |
| 25 | 2000 | 6825.39 |
| 26 | 1999 | 5914.33 |
| 27 | 1998 | 5465.06 |
| 28 | 1997 | 5699.95 |
| 29 | 1996 | 5517.86 |
| 30 | 1995 | 5613.28 |
| 31 | 1994 | 5734.42 |
| 32 | 1993 | 6419.54 |
| 33 | 1992 | 6862.41 |
| 34 | 1991 | 7857.85 |
| 35 | 1990 | 8027.79 |
