| 年度 | 数值 | 单位 | 发布日期 |
| 1993 | 2340 | 千头 | 2026-9 |
| 1992 | 2350 | 千头 | 2026-9 |
| 1991 | 2300 | 千头 | 2026-9 |
| 1990 | 2300 | 千头 | 2026-9 |
| 1989 | 2290 | 千头 | 2026-9 |
| 1988 | 2400 | 千头 | 2026-9 |
| 1987 | 2300 | 千头 | 2026-9 |
| 1984 | 1775 | 千头 | 2026-9 |
| 1983 | 1890 | 千头 | 2026-9 |
| 1982 | 2050 | 千头 | 2026-9 |
| 1981 | 2050 | 千头 | 2026-9 |
| 1980 | 2050 | 千头 | 2026-9 |
| 1979 | 1850 | 千头 | 2026-9 |
| 1978 | 1900 | 千头 | 2026-9 |
| 1977 | 1960 | 千头 | 2026-9 |
| 1976 | 2100 | 千头 | 2026-9 |
| 1975 | 2120 | 千头 | 2026-9 |
| 1974 | 2135 | 千头 | 2026-9 |
| 1973 | 1800 | 千头 | 2026-9 |
| 1972 | 1688 | 千头 | 2026-9 |
| 1971 | 2071 | 千头 | 2026-9 |
| 1970 | 1930 | 千头 | 2026-9 |
| 1969 | 1939 | 千头 | 2026-9 |
| 1968 | 1813 | 千头 | 2026-9 |
| 1967 | 1750 | 千头 | 2026-9 |
| 1966 | 1782 | 千头 | 2026-9 |
| 1965 | 1843 | 千头 | 2026-9 |
| 1964 | 1997 | 千头 | 2026-9 |
| 1963 | 1897 | 千头 | 2026-9 |
| 1962 | 1807 | 千头 | 2026-9 |
| 1961 | 1738 | 千头 | 2026-9 |
| 1960 | 1679 | 千头 | 2026-9 |