| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2018 | |
| 2 | 2017 | |
| 3 | 2016 | |
| 4 | 2015 | |
| 5 | 2014 | |
| 6 | 2013 | |
| 7 | 2012 | |
| 8 | 2011 | |
| 9 | 2010 | |
| 10 | 2009 | |
| 11 | 2008 | 17833.00 |
| 12 | 2007 | 17596.00 |
| 13 | 2006 | 16911.00 |
| 14 | 2005 | 16449.00 |
| 15 | 2004 | 15503.00 |
| 16 | 2003 | 14197.00 |
| 17 | 2002 | 13716.00 |
| 18 | 2001 | 13401.00 |
| 19 | 2000 | 14906.00 |
| 20 | 1999 | 13712.00 |
| 21 | 1998 | 12692.00 |
| 22 | 1997 | 13955.00 |
| 23 | 1996 | 13614.00 |
| 24 | 1995 | 13115.00 |
| 25 | 1994 | 12175.00 |
| 26 | 1993 | 11285.00 |
| 27 | 1992 | 10856.00 |
| 28 | 1991 | 9263.00 |
| 29 | 1990 | 8339.00 |
| 30 | 1989 | 7748.00 |
| 31 | 1988 | 6318.00 |
| 32 | 1987 | 5383.00 |
| 33 | 1986 | 4112.00 |
| 34 | 1985 | 3352.00 |
| 35 | 1984 | 3259.00 |
| 36 | 1983 | 2906.00 |
| 37 | 1982 | 2702.00 |
| 38 | 1981 | 2715.00 |
| 39 | 1980 | 2381.00 |
| 40 | 1979 | 1944.00 |
| 41 | 1978 | 1595.00 |
| 42 | 1977 | 1315.00 |
| 43 | 1976 | 1143.00 |
| 44 | 1975 | 973.00 |
| 45 | 1974 | 927.00 |
| 46 | 1973 | 700.00 |
| 47 | 1972 | 525.00 |
| 48 | 1971 | 447.00 |
| 49 | 1970 | 393.00 |
| 50 | 1969 | 353.00 |
| 51 | 1968 | 316.00 |
| 52 | 1967 | 278.00 |
| 53 | 1966 | 248.00 |
| 54 | 1965 | 228.00 |
| 55 | 1964 | 213.00 |
| 56 | 1963 | 188.00 |
| 57 | 1962 | 172.00 |
| 58 | 1961 | 162.00 |
| 59 | 1960 | 164.00 |
| 60 | 1959 | 141.00 |
| 61 | 1958 | 186.00 |
| 62 | 1957 | 173.00 |
| 63 | 1956 | 153.00 |
| 64 | 1955 | 220.00 |
| 65 | 1954 | 192.00 |
| 66 | 1953 | 181.00 |
| 67 | 1952 | 213.00 |
| 68 | 1951 | 158.00 |
