| 序号 |
时间(年) |
数据(单位：美元) |
| 1 |
2021 |
|
| 2 |
2020 |
|
| 3 |
2019 |
|
| 4 |
2018 |
|
| 5 |
2017 |
|
| 6 |
2016 |
|
| 7 |
2015 |
4840.00 |
| 8 |
2014 |
4750.00 |
| 9 |
2013 |
4470.00 |
| 10 |
2012 |
3930.00 |
| 11 |
2011 |
3590.00 |
| 12 |
2010 |
3470.00 |
| 13 |
2009 |
3650.00 |
| 14 |
2008 |
3760.00 |
| 15 |
2007 |
3560.00 |
| 16 |
2006 |
3370.00 |
| 17 |
2005 |
3350.00 |
| 18 |
2004 |
2850.00 |
| 19 |
2003 |
2290.00 |
| 20 |
2002 |
2070.00 |
| 21 |
2001 |
2070.00 |
| 22 |
2000 |
2170.00 |
| 23 |
1999 |
2300.00 |
| 24 |
1998 |
2250.00 |
| 25 |
1997 |
2540.00 |
| 26 |
1996 |
2620.00 |
| 27 |
1995 |
2410.00 |
| 28 |
1994 |
2160.00 |
| 29 |
1993 |
2000.00 |
| 30 |
1992 |
1880.00 |
| 31 |
1991 |
1680.00 |
| 32 |
1990 |
1670.00 |
| 33 |
1989 |
1680.00 |
| 34 |
1988 |
1690.00 |
| 35 |
1987 |
1690.00 |
| 36 |
1986 |
1730.00 |
| 37 |
1985 |
1550.00 |
| 38 |
1984 |
1640.00 |
| 39 |
1983 |
1570.00 |
| 40 |
1982 |
1780.00 |
| 41 |
1981 |
2010.00 |
| 42 |
1980 |
1840.00 |
| 43 |
1979 |
1640.00 |
| 44 |
1978 |
1360.00 |
| 45 |
1977 |
1290.00 |
| 46 |
1976 |
1230.00 |
| 47 |
1975 |
1120.00 |
| 48 |
1974 |
930.00 |
| 49 |
1973 |
710.00 |
| 50 |
1972 |
520.00 |
| 51 |
1971 |
440.00 |
| 52 |
1970 |
390.00 |
| 53 |
1969 |
340.00 |
| 54 |
1968 |
340.00 |
| 55 |
1967 |
340.00 |
| 56 |
1966 |
300.00 |
| 57 |
1965 |
290.00 |
| 58 |
1964 |
300.00 |
| 59 |
1963 |
280.00 |
| 60 |
1962 |
280.00 |
