| 年度 | 数值 | 单位 | 发布日期 |
| 1990 | 2563 | 千头 | 2026-9 |
| 1989 | 1689 | 千头 | 2026-9 |
| 1988 | 1863 | 千头 | 2026-9 |
| 1987 | 1929 | 千头 | 2026-9 |
| 1986 | 1879 | 千头 | 2026-9 |
| 1985 | 1897 | 千头 | 2026-9 |
| 1984 | 1818 | 千头 | 2026-9 |
| 1983 | 1805 | 千头 | 2026-9 |
| 1982 | 1878 | 千头 | 2026-9 |
| 1981 | 1849 | 千头 | 2026-9 |
| 1980 | 1690 | 千头 | 2026-9 |
| 1979 | 1743 | 千头 | 2026-9 |
| 1978 | 1782 | 千头 | 2026-9 |
| 1977 | 1627 | 千头 | 2026-9 |
| 1976 | 1708 | 千头 | 2026-9 |
| 1975 | 1833 | 千头 | 2026-9 |
| 1974 | 1691 | 千头 | 2026-9 |
| 1973 | 1665 | 千头 | 2026-9 |
| 1972 | 1701 | 千头 | 2026-9 |
| 1971 | 1648 | 千头 | 2026-9 |
| 1970 | 1672 | 千头 | 2026-9 |
| 1969 | 1618 | 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 |