| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1992 | 14 | 千头 | 2026-9 |
| 1991 | 8 | 千头 | 2026-9 |
| 1990 | 8 | 千头 | 2026-9 |
| 1989 | 10 | 千头 | 2026-9 |
| 1988 | 10 | 千头 | 2026-9 |
| 1987 | 6 | 千头 | 2026-9 |
| 1986 | 8 | 千头 | 2026-9 |
| 1985 | 11 | 千头 | 2026-9 |
| 1984 | 10 | 千头 | 2026-9 |
| 1983 | 9 | 千头 | 2026-9 |
| 1982 | 11 | 千头 | 2026-9 |
| 1981 | 15 | 千头 | 2026-9 |
| 1980 | 9 | 千头 | 2026-9 |
| 1979 | 14 | 千头 | 2026-9 |
| 1978 | 15 | 千头 | 2026-9 |
| 1977 | 18 | 千头 | 2026-9 |
| 1976 | 21 | 千头 | 2026-9 |
| 1975 | 30 | 千头 | 2026-9 |
| 1974 | 33 | 千头 | 2026-9 |
| 1973 | 31 | 千头 | 2026-9 |
| 1972 | 38 | 千头 | 2026-9 |
| 1971 | 82 | 千头 | 2026-9 |
| 1970 | 116 | 千头 | 2026-9 |
| 1969 | 183 | 千头 | 2026-9 |
| 1968 | 156 | 千头 | 2026-9 |
| 1967 | 105 | 千头 | 2026-9 |
| 1966 | 169 | 千头 | 2026-9 |
| 1965 | 277 | 千头 | 2026-9 |
| 1964 | 266 | 千头 | 2026-9 |
| 1963 | 340 | 千头 | 2026-9 |
| 1962 | 294 | 千头 | 2026-9 |
| 1961 | 371 | 千头 | 2026-9 |
| 1960 | 353 | 千头 | 2026-9 |