| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 3440.00 |
| 8 | 2017 | 3260.00 |
| 9 | 2016 | 3310.00 |
| 10 | 2015 | 3540.00 |
| 11 | 2014 | 3900.00 |
| 12 | 2013 | 4200.00 |
| 13 | 2012 | 4140.00 |
| 14 | 2011 | 3700.00 |
| 15 | 2010 | 3320.00 |
| 16 | 2009 | 3180.00 |
| 17 | 2008 | 3220.00 |
| 18 | 2007 | 3330.00 |
| 19 | 2006 | 3150.00 |
| 20 | 2005 | 2950.00 |
| 21 | 2004 | 2070.00 |
| 22 | 2003 | 1630.00 |
| 23 | 2002 | 1510.00 |
| 24 | 2001 | 1640.00 |
| 25 | 2000 | 1610.00 |
| 26 | 1999 | 1670.00 |
| 27 | 1998 | 1670.00 |
| 28 | 1997 | 1870.00 |
| 29 | 1996 | 1840.00 |
| 30 | 1995 | 1740.00 |
| 31 | 1994 | 1470.00 |
| 32 | 1993 | 1450.00 |
| 33 | 1992 | 1440.00 |
| 34 | 1991 | 1260.00 |
| 35 | 1990 | 1220.00 |
| 36 | 1974 | 460.00 |
| 37 | 1973 | 360.00 |
| 38 | 1972 | 290.00 |
