| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | |
| 8 | 2016 | |
| 9 | 2015 | |
| 10 | 2014 | |
| 11 | 2013 | 24814.62 |
| 12 | 2012 | 23801.25 |
| 13 | 2011 | 22842.94 |
| 14 | 2010 | 21815.37 |
| 15 | 2009 | 20513.68 |
| 16 | 2008 | 20022.04 |
| 17 | 2007 | 19227.15 |
| 18 | 2006 | 18040.56 |
| 19 | 2005 | 17021.88 |
| 20 | 2004 | 16144.53 |
| 21 | 2003 | 15254.19 |
| 22 | 2002 | 14633.27 |
| 23 | 2001 | 14174.99 |
| 24 | 2000 | 13870.18 |
| 25 | 1999 | 13429.35 |
| 26 | 1998 | 13202.23 |
| 27 | 1997 | 13103.52 |
| 28 | 1996 | 12743.43 |
| 29 | 1995 | 12278.41 |
| 30 | 1994 | 11974.43 |
| 31 | 1993 | 11732.44 |
| 32 | 1992 | 11467.64 |
| 33 | 1991 | 11294.66 |
