| 年份 | 单位：万人 |
| 2011 | 24556.00 |
| 2010 | 22392.00 |
| 2009 | 22314.00 |
| 2008 | 20334.00 |
| 2007 | 22835.00 |
| 2006 | 22047.00 |
| 2005 | 20227.00 |
| 2004 | 19040.00 |
| 2003 | 17142.00 |
| 2002 | 18693.00 |
| 2001 | 18645.00 |
| 2000 | 19386.00 |
| 1999 | 19151.00 |
| 1998 | 20545.00 |
| 1997 | 22573.00 |
| 1996 | 22895.00 |
| 1995 | 23924.00 |
| 1994 | 26165.00 |
| 1993 | 27074.00 |
| 1992 | 26502.00 |
| 1991 | 26109.00 |
| 1990 | 27225.00 |
| 1989 | 31778.00 |
| 1988 | 35032.00 |
| 1987 | 38951.00 |
| 1986 | 34377.00 |
| 1985 | 30863.00 |
| 1984 | 25974.00 |
| 1983 | 27214.00 |
| 1982 | 27987.00 |
| 1981 | 27584.00 |
| 1980 | 26439.00 |
| 1979 | 24360.00 |
| 1978 | 23042.00 |
| 1977 | 22542.00 |
| 1976 | 21298.00 |
| 1975 | 21015.00 |
| 1974 | 19647.00 |
| 1973 | 19270.00 |
| 1972 | 17297.00 |
| 1971 | 15638.00 |
| 1970 | 15767.00 |
| 1969 | 15531.00 |
| 1968 | 14038.00 |
| 1967 | 13548.00 |
| 1966 | 12780.00 |
| 1965 | 11369.00 |
| 1964 | 11878.00 |
| 1963 | 12678.00 |
| 1962 | 16397.00 |
| 1961 | 15152.00 |
| 1960 | 12333.00 |
| 1959 | 10626.00 |
| 1958 | 9492.00 |
| 1957 | 8780.00 |
| 1956 | 7177.00 |
| 1955 | 5646.00 |
| 1954 | 5523.00 |
| 1953 | 5324.00 |
| 1952 | 3605.00 |
| 1951 | 2945.00 |
| 1950 | 2377.00 |
| 1949 | 1562.00 |
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