| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 24200.00 |
| 8 | 2017 | 22360.00 |
| 9 | 2016 | 22720.00 |
| 10 | 2015 | 23640.00 |
| 11 | 2014 | 25480.00 |
| 12 | 2013 | 25970.00 |
| 13 | 2012 | 24670.00 |
| 14 | 2011 | 20040.00 |
| 15 | 2010 | 19510.00 |
| 16 | 2009 | 18940.00 |
| 17 | 2008 | 21070.00 |
| 18 | 2007 | 19600.00 |
| 19 | 2006 | 17850.00 |
| 20 | 2005 | 16550.00 |
| 21 | 2004 | 14680.00 |
| 22 | 2003 | 13180.00 |
| 23 | 2002 | 12480.00 |
| 24 | 2001 | 12730.00 |
| 25 | 2000 | 12500.00 |
| 26 | 1999 | 10120.00 |
| 27 | 1998 | 10210.00 |
| 28 | 1997 | 10410.00 |
| 29 | 1996 | 10880.00 |
| 30 | 1995 | 10470.00 |
| 31 | 1994 | 9780.00 |
| 32 | 1993 | 10150.00 |
| 33 | 1992 | 10010.00 |
| 34 | 1991 | 9930.00 |
| 35 | 1990 | 8740.00 |
| 36 | 1989 | 7410.00 |
| 37 | 1988 | 7560.00 |
| 38 | 1987 | 7470.00 |
| 39 | 1986 | 7020.00 |
| 40 | 1985 | 7700.00 |
| 41 | 1984 | 9130.00 |
| 42 | 1983 | 9060.00 |
| 43 | 1982 | 8500.00 |
| 44 | 1981 | 8530.00 |
| 45 | 1980 | 7600.00 |
