| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 4670.00 |
| 8 | 2017 | 4430.00 |
| 9 | 2016 | 4580.00 |
| 10 | 2015 | 5180.00 |
| 11 | 2014 | 5690.00 |
| 12 | 2013 | 5900.00 |
| 13 | 2012 | 5730.00 |
| 14 | 2011 | 5160.00 |
| 15 | 2010 | 4520.00 |
| 16 | 2009 | 4260.00 |
| 17 | 2008 | 4310.00 |
| 18 | 2007 | 4200.00 |
| 19 | 2006 | 3990.00 |
| 20 | 2005 | 3480.00 |
| 21 | 2004 | 2840.00 |
| 22 | 2003 | 2240.00 |
| 23 | 2002 | 1970.00 |
| 24 | 2001 | 2060.00 |
| 25 | 2000 | 2210.00 |
| 26 | 1999 | 2230.00 |
| 27 | 1998 | 2370.00 |
| 28 | 1997 | 2520.00 |
| 29 | 1996 | 2530.00 |
| 30 | 1995 | 2500.00 |
| 31 | 1994 | 2320.00 |
| 32 | 1993 | 2270.00 |
| 33 | 1992 | 2390.00 |
| 34 | 1991 | 2240.00 |
| 35 | 1990 | 2090.00 |
| 36 | 1989 | 1990.00 |
| 37 | 1988 | 1860.00 |
| 38 | 1987 | 1770.00 |
| 39 | 1986 | 1470.00 |
| 40 | 1985 | 1440.00 |
| 41 | 1984 | 1820.00 |
| 42 | 1983 | 2010.00 |
| 43 | 1982 | 2170.00 |
