| 年度 | 数值 | 单位 | 发布日期 |
| 1992 | 35 | 千头 | 2026-9 |
| 1991 | 75 | 千头 | 2026-9 |
| 1990 | 72 | 千头 | 2026-9 |
| 1989 | 86 | 千头 | 2026-9 |
| 1988 | 70 | 千头 | 2026-9 |
| 1987 | 65 | 千头 | 2026-9 |
| 1986 | 60 | 千头 | 2026-9 |
| 1985 | 65 | 千头 | 2026-9 |
| 1984 | 53 | 千头 | 2026-9 |
| 1983 | 37 | 千头 | 2026-9 |
| 1982 | 38 | 千头 | 2026-9 |
| 1981 | 30 | 千头 | 2026-9 |
| 1980 | 67 | 千头 | 2026-9 |
| 1979 | 72 | 千头 | 2026-9 |
| 1978 | 34 | 千头 | 2026-9 |
| 1977 | 34 | 千头 | 2026-9 |
| 1976 | 31 | 千头 | 2026-9 |
| 1975 | 15 | 千头 | 2026-9 |
| 1974 | 24 | 千头 | 2026-9 |
| 1973 | 68 | 千头 | 2026-9 |
| 1972 | 50 | 千头 | 2026-9 |
| 1971 | 58 | 千头 | 2026-9 |
| 1970 | 13 | 千头 | 2026-9 |
| 1969 | 9 | 千头 | 2026-9 |
| 1968 | 54 | 千头 | 2026-9 |
| 1967 | 28 | 千头 | 2026-9 |
| 1966 | 27 | 千头 | 2026-9 |
| 1965 | 14 | 千头 | 2026-9 |
| 1964 | 7 | 千头 | 2026-9 |
| 1963 | 22 | 千头 | 2026-9 |
| 1962 | 45 | 千头 | 2026-9 |
| 1961 | 73 | 千头 | 2026-9 |
| 1960 | 0 | 千头 | 2026-9 |