| 年度 | 数值 | 单位 | 发布日期 |
| 1992 | 9 | 千头 | 2026-9 |
| 1991 | 2 | 千头 | 2026-9 |
| 1990 | 6 | 千头 | 2026-9 |
| 1989 | 24 | 千头 | 2026-9 |
| 1988 | 28 | 千头 | 2026-9 |
| 1987 | 18 | 千头 | 2026-9 |
| 1986 | 100 | 千头 | 2026-9 |
| 1985 | 24 | 千头 | 2026-9 |
| 1984 | 34 | 千头 | 2026-9 |
| 1983 | 24 | 千头 | 2026-9 |
| 1982 | 64 | 千头 | 2026-9 |
| 1981 | 108 | 千头 | 2026-9 |
| 1980 | 78 | 千头 | 2026-9 |
| 1979 | 120 | 千头 | 2026-9 |
| 1978 | 120 | 千头 | 2026-9 |
| 1977 | 142 | 千头 | 2026-9 |
| 1976 | 89 | 千头 | 2026-9 |
| 1975 | 86 | 千头 | 2026-9 |
| 1974 | 93 | 千头 | 2026-9 |
| 1973 | 98 | 千头 | 2026-9 |
| 1972 | 100 | 千头 | 2026-9 |
| 1971 | 93 | 千头 | 2026-9 |
| 1970 | 163 | 千头 | 2026-9 |
| 1969 | 129 | 千头 | 2026-9 |
| 1968 | 135 | 千头 | 2026-9 |
| 1967 | 157 | 千头 | 2026-9 |
| 1966 | 75 | 千头 | 2026-9 |
| 1965 | 101 | 千头 | 2026-9 |
| 1964 | 148 | 千头 | 2026-9 |
| 1963 | 140 | 千头 | 2026-9 |
| 1962 | 102 | 千头 | 2026-9 |
| 1961 | 159 | 千头 | 2026-9 |
| 1960 | 45 | 千头 | 2026-9 |