| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 6789.43 |
| 8 | 2016 | 6676.43 |
| 9 | 2015 | 6530.84 |
| 10 | 2014 | 6341.42 |
| 11 | 2013 | 6456.20 |
| 12 | 2012 | 6434.08 |
| 13 | 2011 | 6730.55 |
| 14 | 2010 | 6409.80 |
| 15 | 2009 | 6236.18 |
| 16 | 2008 | 6248.95 |
| 17 | 2007 | 6130.50 |
| 18 | 2006 | 6126.50 |
| 19 | 2005 | 6113.09 |
| 20 | 2004 | 5877.00 |
| 21 | 2003 | 5948.99 |
| 22 | 2002 | 6105.51 |
| 23 | 2001 | 6032.37 |
| 24 | 2000 | 5930.62 |
| 25 | 1999 | 6002.84 |
| 26 | 1998 | 5242.32 |
| 27 | 1997 | 6874.18 |
| 28 | 1996 | 6613.64 |
| 29 | 1995 | 6093.04 |
| 30 | 1994 | 6006.89 |
| 31 | 1993 | 6016.91 |
| 32 | 1992 | 6104.35 |
| 33 | 1991 | 6234.05 |
