| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1985 | 22 | 千头 | 2026-9 |
| 1984 | 21 | 千头 | 2026-9 |
| 1983 | 45 | 千头 | 2026-9 |
| 1982 | 47 | 千头 | 2026-9 |
| 1981 | 45 | 千头 | 2026-9 |
| 1980 | 38 | 千头 | 2026-9 |
| 1979 | 38 | 千头 | 2026-9 |
| 1978 | 37 | 千头 | 2026-9 |
| 1977 | 34 | 千头 | 2026-9 |
| 1976 | 31 | 千头 | 2026-9 |
| 1975 | 31 | 千头 | 2026-9 |
| 1974 | 30 | 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 |