| 年度 | 数值 | 单位 | 发布日期 |
| 1998 | 1757 | 千头 | 2026-9 |
| 1997 | 1637 | 千头 | 2026-9 |
| 1996 | 1856 | 千头 | 2026-9 |
| 1995 | 1770 | 千头 | 2026-9 |
| 1994 | 1598 | 千头 | 2026-9 |
| 1993 | 1888 | 千头 | 2026-9 |
| 1992 | 1952 | 千头 | 2026-9 |
| 1991 | 1964 | 千头 | 2026-9 |
| 1990 | 1791 | 千头 | 2026-9 |
| 1989 | 1916 | 千头 | 2026-9 |
| 1988 | 1942 | 千头 | 2026-9 |
| 1987 | 1930 | 千头 | 2026-9 |
| 1986 | 1945 | 千头 | 2026-9 |
| 1985 | 1784 | 千头 | 2026-9 |
| 1984 | 1644 | 千头 | 2026-9 |
| 1983 | 1638 | 千头 | 2026-9 |
| 1982 | 2219 | 千头 | 2026-9 |
| 1981 | 2048 | 千头 | 2026-9 |
| 1980 | 2376 | 千头 | 2026-9 |
| 1979 | 2144 | 千头 | 2026-9 |
| 1978 | 2107 | 千头 | 2026-9 |
| 1977 | 1781 | 千头 | 2026-9 |
| 1976 | 1760 | 千头 | 2026-9 |
| 1975 | 2096 | 千头 | 2026-9 |
| 1974 | 2135 | 千头 | 2026-9 |
| 1973 | 2015 | 千头 | 2026-9 |
| 1972 | 1904 | 千头 | 2026-9 |
| 1971 | 1618 | 千头 | 2026-9 |
| 1970 | 1500 | 千头 | 2026-9 |
| 1969 | 1594 | 千头 | 2026-9 |
| 1968 | 1564 | 千头 | 2026-9 |
| 1967 | 1604 | 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 |