| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 8799.89 |
| 8 | 2016 | 8415.63 |
| 9 | 2015 | 8225.80 |
| 10 | 2014 | 8174.24 |
| 11 | 2013 | 7797.73 |
| 12 | 2012 | 7394.87 |
| 13 | 2011 | 7175.37 |
| 14 | 2010 | 7079.78 |
| 15 | 2009 | 7159.10 |
| 16 | 2008 | 7227.92 |
| 17 | 2007 | 7116.67 |
| 18 | 2006 | 6921.47 |
| 19 | 2005 | 6881.96 |
| 20 | 2004 | 7001.92 |
| 21 | 2003 | 6925.15 |
| 22 | 2002 | 6914.48 |
| 23 | 2001 | 6829.41 |
| 24 | 2000 | 6704.28 |
| 25 | 1999 | 6548.06 |
| 26 | 1998 | 6427.17 |
| 27 | 1997 | 6384.43 |
| 28 | 1996 | 6228.45 |
| 29 | 1995 | 6111.19 |
| 30 | 1994 | 5845.41 |
| 31 | 1993 | 5960.94 |
| 32 | 1992 | 5934.28 |
| 33 | 1991 | 5950.44 |
