| 年份 | 单位：亿元 |
| 2011 | 58.14 |
| 2010 | 58.14 |
| 2009 | 84.10 |
| 2008 | 47.08 |
| 2007 | 40.16 |
| 2006 | 44.91 |
| 2005 | 47.84 |
| 2004 | 64.12 |
| 2003 | 52.33 |
| 2002 | 72.00 |
| 2001 | 60.00 |
| 2000 | 59.22 |
| 1999 | 50.11 |
| 1998 | 54.67 |
| 1992 | 2878.59 |
| 1991 | 2477.53 |
| 1990 | 2071.10 |
| 1989 | 2103.81 |
| 1988 | 1872.89 |
| 1987 | 1625.78 |
| 1986 | 1399.89 |
| 1985 | 1252.73 |
| 1984 | 990.73 |
| 1983 | 804.01 |
| 1982 | 656.32 |
| 1981 | 474.87 |
| 1980 | 442.11 |
| 1979 | 344.25 |
| 1978 | 252.61 |
| 1977 | 223.71 |
| 1976 | 198.16 |
| 1975 | 181.32 |
| 1974 | 162.47 |
| 1973 | 134.58 |
| 1972 | 79.30 |
| 1971 | 73.84 |
| 1970 | 59.49 |
| 1969 | 49.23 |
| 1968 | 43.48 |
| 1967 | 51.89 |
| 1966 | 50.77 |
| 1965 | 47.35 |
| 1964 | 40.92 |
| 1963 | 32.67 |
| 1962 | 27.92 |
| 1961 | 28.50 |
| 1960 | 71.26 |
| 1959 | 49.38 |
| 1958 | 29.11 |
| 1957 | 16.87 |
| 1956 | 12.57 |
| 1955 | 10.07 |
| 1954 | 8.82 |
| 1953 | 5.44 |
| 1952 | 1.09 |
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