| 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 | 47491.16 |
| 12 | 2012 | 47179.79 |
| 13 | 2011 | 46519.73 |
| 14 | 2010 | 44658.91 |
| 15 | 2009 | 44904.92 |
| 16 | 2008 | 43915.00 |
| 17 | 2007 | 41744.16 |
| 18 | 2006 | 41511.70 |
| 19 | 2005 | 40900.38 |
| 20 | 2004 | 40703.82 |
| 21 | 2003 | 41344.51 |
| 22 | 2002 | 41736.69 |
| 23 | 2001 | 40032.91 |
| 24 | 2000 | 38581.83 |
| 25 | 1999 | 35929.62 |
| 26 | 1998 | 36087.60 |
| 27 | 1997 | 34867.43 |
| 28 | 1996 | 33819.60 |
| 29 | 1995 | 33473.44 |
| 30 | 1994 | 32247.38 |
| 31 | 1993 | 32576.94 |
| 32 | 1992 | 32311.32 |
| 33 | 1991 | 32264.52 |
