| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 3500 | 千头 | 2026-9 |
| 1997 | 3084 | 千头 | 2026-9 |
| 1996 | 3961 | 千头 | 2026-9 |
| 1995 | 4000 | 千头 | 2026-9 |
| 1994 | 3960 | 千头 | 2026-9 |
| 1993 | 3009 | 千头 | 2026-9 |
| 1992 | 4700 | 千头 | 2026-9 |
| 1991 | 5850 | 千头 | 2026-9 |
| 1990 | 5941 | 千头 | 2026-9 |
| 1989 | 5710 | 千头 | 2026-9 |
| 1988 | 6027 | 千头 | 2026-9 |
| 1987 | 6069 | 千头 | 2026-9 |
| 1986 | 5103 | 千头 | 2026-9 |
| 1985 | 5195 | 千头 | 2026-9 |
| 1984 | 4953 | 千头 | 2026-9 |
| 1983 | 4761 | 千头 | 2026-9 |
| 1982 | 5009 | 千头 | 2026-9 |
| 1981 | 4812 | 千头 | 2026-9 |
| 1980 | 4845 | 千头 | 2026-9 |
| 1979 | 4775 | 千头 | 2026-9 |
| 1978 | 4494 | 千头 | 2026-9 |
| 1977 | 4065 | 千头 | 2026-9 |
| 1976 | 0 | 千头 | 2026-9 |
| 1975 | 0 | 千头 | 2026-9 |
| 1974 | 0 | 千头 | 2026-9 |
| 1973 | 0 | 千头 | 2026-9 |
| 1972 | 0 | 千头 | 2026-9 |
| 1971 | 0 | 千头 | 2026-9 |
| 1970 | 0 | 千头 | 2026-9 |
| 1969 | 0 | 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 |