| 年度 | 数值 | 单位 | 发布日期 |
| 2007 | 3133 | 千头 | 2026-9 |
| 2006 | 2888 | 千头 | 2026-9 |
| 2005 | 2758 | 千头 | 2026-9 |
| 2004 | 2879 | 千头 | 2026-9 |
| 2003 | 2300 | 千头 | 2026-9 |
| 2002 | 1598 | 千头 | 2026-9 |
| 2001 | 1899 | 千头 | 2026-9 |
| 2000 | 1899 | 千头 | 2026-9 |
| 1999 | 1891 | 千头 | 2026-9 |
| 1998 | 1868 | 千头 | 2026-9 |
| 1997 | 1814 | 千头 | 2026-9 |
| 1996 | 1775 | 千头 | 2026-9 |
| 1995 | 2320 | 千头 | 2026-9 |
| 1994 | 1153 | 千头 | 2026-9 |
| 1993 | 1752 | 千头 | 2026-9 |
| 1992 | 1794 | 千头 | 2026-9 |
| 1991 | 1412 | 千头 | 2026-9 |
| 1990 | 1619 | 千头 | 2026-9 |
| 1989 | 1237 | 千头 | 2026-9 |
| 1988 | 1156 | 千头 | 2026-9 |
| 1987 | 1268 | 千头 | 2026-9 |
| 1986 | 1964 | 千头 | 2026-9 |
| 1985 | 2227 | 千头 | 2026-9 |
| 1984 | 2491 | 千头 | 2026-9 |
| 1983 | 2327 | 千头 | 2026-9 |
| 1982 | 2126 | 千头 | 2026-9 |
| 1981 | 2000 | 千头 | 2026-9 |
| 1980 | 2534 | 千头 | 2026-9 |
| 1979 | 2075 | 千头 | 2026-9 |
| 1978 | 2050 | 千头 | 2026-9 |
| 1977 | 1947 | 千头 | 2026-9 |
| 1976 | 2187 | 千头 | 2026-9 |
| 1975 | 2061 | 千头 | 2026-9 |
| 1974 | 1975 | 千头 | 2026-9 |
| 1973 | 2579 | 千头 | 2026-9 |
| 1972 | 2316 | 千头 | 2026-9 |
| 1971 | 2109 | 千头 | 2026-9 |
| 1970 | 1931 | 千头 | 2026-9 |
| 1969 | 1374 | 千头 | 2026-9 |
| 1968 | 0 | 千头 | 2026-9 |
| 1967 | 0 | 千头 | 2026-9 |
| 1966 | 0 | 千头 | 2026-9 |
| 1965 | 0 | 千头 | 2026-9 |
| 1964 | 0 | 千头 | 2026-9 |
| 1963 | 0 | 千头 | 2026-9 |
| 1962 | 0 | 千头 | 2026-9 |
| 1961 | 0 | 千头 | 2026-9 |
| 1960 | 0 | 千头 | 2026-9 |