| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 30794.90 |
| 8 | 2017 | 29578.63 |
| 9 | 2016 | 28214.71 |
| 10 | 2015 | 26877.47 |
| 11 | 2014 | 26755.60 |
| 12 | 2013 | 24624.44 |
| 13 | 2012 | 23457.89 |
| 14 | 2011 | 24550.17 |
| 15 | 2010 | 23691.45 |
| 16 | 2009 | 23384.74 |
| 17 | 2008 | 24102.20 |
| 18 | 2007 | 21301.24 |
| 19 | 2006 | 20676.19 |
| 20 | 2005 | 19500.32 |
| 21 | 2004 | 17275.86 |
| 22 | 2003 | 16225.67 |
| 23 | 2002 | 16619.17 |
| 24 | 2001 | 16235.42 |
| 25 | 2000 | 15256.43 |
| 26 | 1999 | 13753.66 |
| 27 | 1998 | 13318.76 |
| 28 | 1997 | 13408.88 |
| 29 | 1996 | 12498.09 |
| 30 | 1995 | 11746.82 |
| 31 | 1994 | 11061.60 |
| 32 | 1993 | 10418.24 |
| 33 | 1992 | 9652.20 |
| 34 | 1991 | 9130.83 |
| 35 | 1990 | 8983.49 |
