| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1993 | 47 | 千头 | 2026-9 |
| 1992 | 46 | 千头 | 2026-9 |
| 1991 | 45 | 千头 | 2026-9 |
| 1990 | 45 | 千头 | 2026-9 |
| 1989 | 46 | 千头 | 2026-9 |
| 1988 | 47 | 千头 | 2026-9 |
| 1987 | 48 | 千头 | 2026-9 |
| 1986 | 51 | 千头 | 2026-9 |
| 1985 | 48 | 千头 | 2026-9 |
| 1984 | 46 | 千头 | 2026-9 |
| 1983 | 46 | 千头 | 2026-9 |
| 1982 | 47 | 千头 | 2026-9 |
| 1981 | 50 | 千头 | 2026-9 |
| 1980 | 52 | 千头 | 2026-9 |
| 1979 | 52 | 千头 | 2026-9 |
| 1978 | 56 | 千头 | 2026-9 |
| 1977 | 61 | 千头 | 2026-9 |
| 1976 | 56 | 千头 | 2026-9 |
| 1975 | 55 | 千头 | 2026-9 |
| 1974 | 57 | 千头 | 2026-9 |
| 1973 | 60 | 千头 | 2026-9 |
| 1972 | 75 | 千头 | 2026-9 |
| 1971 | 77 | 千头 | 2026-9 |
| 1970 | 73 | 千头 | 2026-9 |
| 1969 | 69 | 千头 | 2026-9 |
| 1968 | 77 | 千头 | 2026-9 |
| 1967 | 76 | 千头 | 2026-9 |
| 1966 | 82 | 千头 | 2026-9 |
| 1965 | 90 | 千头 | 2026-9 |
| 1964 | 95 | 千头 | 2026-9 |
| 1963 | 97 | 千头 | 2026-9 |
| 1962 | 85 | 千头 | 2026-9 |
| 1961 | 84 | 千头 | 2026-9 |
| 1960 | 87 | 千头 | 2026-9 |