| 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 | 52893.65 |
| 12 | 2012 | 52389.33 |
| 13 | 2011 | 50653.06 |
| 14 | 2010 | 50190.88 |
| 15 | 2009 | 48924.76 |
| 16 | 2008 | 48203.12 |
| 17 | 2007 | 44366.43 |
| 18 | 2006 | 42039.79 |
| 19 | 2005 | 38527.09 |
| 20 | 2004 | 35604.34 |
| 21 | 2003 | 32516.04 |
| 22 | 2002 | 30618.00 |
| 23 | 2001 | 30561.80 |
| 24 | 2000 | 29616.16 |
| 25 | 1999 | 27080.86 |
| 26 | 1998 | 26340.05 |
| 27 | 1997 | 24215.22 |
| 28 | 1996 | 23502.07 |
| 29 | 1995 | 22772.56 |
| 30 | 1994 | 21619.35 |
| 31 | 1993 | 20092.10 |
| 32 | 1992 | 20628.57 |
| 33 | 1991 | 21178.87 |
| 34 | 1990 | 20472.46 |
