| 年度 | 数值 | 单位 | 发布日期 |
| 1992 | 3170 | 千头 | 2026-9 |
| 1991 | 3047 | 千头 | 2026-9 |
| 1990 | 3507 | 千头 | 2026-9 |
| 1989 | 3000 | 千头 | 2026-9 |
| 1988 | 2943 | 千头 | 2026-9 |
| 1987 | 3173 | 千头 | 2026-9 |
| 1986 | 3186 | 千头 | 2026-9 |
| 1985 | 2993 | 千头 | 2026-9 |
| 1984 | 2824 | 千头 | 2026-9 |
| 1983 | 2642 | 千头 | 2026-9 |
| 1982 | 2652 | 千头 | 2026-9 |
| 1981 | 2647 | 千头 | 2026-9 |
| 1980 | 2366 | 千头 | 2026-9 |
| 1979 | 2254 | 千头 | 2026-9 |
| 1978 | 2242 | 千头 | 2026-9 |
| 1977 | 2140 | 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 |