| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 21166.27 |
| 8 | 2016 | 20070.27 |
| 9 | 2015 | 18791.90 |
| 10 | 2014 | 17660.14 |
| 11 | 2013 | 16705.23 |
| 12 | 2012 | 15966.83 |
| 13 | 2011 | 15269.36 |
| 14 | 2010 | 14639.20 |
| 15 | 2009 | 13783.37 |
| 16 | 2008 | 13054.71 |
| 17 | 2007 | 12941.41 |
| 18 | 2006 | 12291.22 |
| 19 | 2005 | 11635.18 |
| 20 | 2004 | 10899.02 |
| 21 | 2003 | 10216.87 |
| 22 | 2002 | 9587.72 |
| 23 | 2001 | 9352.72 |
| 24 | 2000 | 9038.93 |
| 25 | 1999 | 8979.30 |
| 26 | 1998 | 8512.74 |
| 27 | 1997 | 8274.30 |
| 28 | 1996 | 8209.13 |
| 29 | 1995 | 7880.88 |
| 30 | 1994 | 7564.53 |
| 31 | 1993 | 7267.13 |
| 32 | 1992 | 7105.40 |
| 33 | 1991 | 6898.58 |
