| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1992 | 230 | 千头 | 2026-9 |
| 1991 | 210 | 千头 | 2026-9 |
| 1990 | 125 | 千头 | 2026-9 |
| 1989 | 104 | 千头 | 2026-9 |
| 1988 | 93 | 千头 | 2026-9 |
| 1987 | 89 | 千头 | 2026-9 |
| 1986 | 86 | 千头 | 2026-9 |
| 1985 | 88 | 千头 | 2026-9 |
| 1984 | 72 | 千头 | 2026-9 |
| 1983 | 74 | 千头 | 2026-9 |
| 1982 | 83 | 千头 | 2026-9 |
| 1981 | 82 | 千头 | 2026-9 |
| 1980 | 75 | 千头 | 2026-9 |
| 1979 | 67 | 千头 | 2026-9 |
| 1978 | 68 | 千头 | 2026-9 |
| 1977 | 71 | 千头 | 2026-9 |
| 1976 | 71 | 千头 | 2026-9 |
| 1975 | 78 | 千头 | 2026-9 |
| 1974 | 73 | 千头 | 2026-9 |
| 1973 | 45 | 千头 | 2026-9 |
| 1972 | 39 | 千头 | 2026-9 |
| 1971 | 32 | 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 |