| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 49248.68 |
| 8 | 2017 | 47234.85 |
| 9 | 2016 | 44562.40 |
| 10 | 2015 | 42269.22 |
| 11 | 2014 | 41547.10 |
| 12 | 2013 | 41325.81 |
| 13 | 2012 | 40739.11 |
| 14 | 2011 | 40845.96 |
| 15 | 2010 | 38950.55 |
| 16 | 2009 | 37968.66 |
| 17 | 2008 | 40081.22 |
| 18 | 2007 | 37844.29 |
| 19 | 2006 | 34447.71 |
| 20 | 2005 | 32047.71 |
| 21 | 2004 | 31199.29 |
| 22 | 2003 | 29046.41 |
| 23 | 2002 | 28596.26 |
| 24 | 2001 | 27801.02 |
| 25 | 2000 | 26777.11 |
| 26 | 1999 | 24761.82 |
| 27 | 1998 | 23568.36 |
| 28 | 1997 | 21782.02 |
| 29 | 1996 | 20059.99 |
| 30 | 1995 | 19554.88 |
| 31 | 1994 | 18445.38 |
| 32 | 1993 | 17446.18 |
| 33 | 1992 | 17259.56 |
| 34 | 1991 | 17550.23 |
| 35 | 1990 | 18134.77 |
