| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 67840.84 |
| 8 | 2016 | 65548.53 |
| 9 | 2015 | 65157.52 |
| 10 | 2014 | 64838.94 |
| 11 | 2013 | 62699.49 |
| 12 | 2012 | 59582.18 |
| 13 | 2011 | 57295.19 |
| 14 | 2010 | 54008.95 |
| 15 | 2009 | 51239.92 |
| 16 | 2008 | 51512.25 |
| 17 | 2007 | 51661.06 |
| 18 | 2006 | 48842.74 |
| 19 | 2005 | 45095.31 |
| 20 | 2004 | 41616.67 |
| 21 | 2003 | 38627.98 |
| 22 | 2002 | 35982.79 |
| 23 | 2001 | 33407.19 |
| 24 | 2000 | 30301.70 |
| 25 | 1999 | 27839.04 |
| 26 | 1998 | 26935.95 |
| 27 | 1997 | 27233.81 |
| 28 | 1996 | 26550.42 |
| 29 | 1995 | 25571.24 |
| 30 | 1994 | 26429.78 |
| 31 | 1993 | 28093.89 |
| 32 | 1992 | 30991.39 |
| 33 | 1991 | 32802.07 |
