| 年度 | 数值 | 单位 | 发布日期 |
| 1998 | 1200 | 千头 | 2026-9 |
| 1997 | 1200 | 千头 | 2026-9 |
| 1996 | 1240 | 千头 | 2026-9 |
| 1995 | 1210 | 千头 | 2026-9 |
| 1994 | 1200 | 千头 | 2026-9 |
| 1993 | 1410 | 千头 | 2026-9 |
| 1992 | 1260 | 千头 | 2026-9 |
| 1991 | 1500 | 千头 | 2026-9 |
| 1990 | 1550 | 千头 | 2026-9 |
| 1989 | 1700 | 千头 | 2026-9 |
| 1988 | 1700 | 千头 | 2026-9 |
| 1987 | 1745 | 千头 | 2026-9 |
| 1986 | 1585 | 千头 | 2026-9 |
| 1985 | 2406 | 千头 | 2026-9 |
| 1984 | 2506 | 千头 | 2026-9 |
| 1983 | 1057 | 千头 | 2026-9 |
| 1982 | 1461 | 千头 | 2026-9 |
| 1981 | 1617 | 千头 | 2026-9 |
| 1980 | 1671 | 千头 | 2026-9 |
| 1979 | 1582 | 千头 | 2026-9 |
| 1978 | 1570 | 千头 | 2026-9 |
| 1977 | 1570 | 千头 | 2026-9 |
| 1976 | 1758 | 千头 | 2026-9 |
| 1975 | 1819 | 千头 | 2026-9 |
| 1974 | 1777 | 千头 | 2026-9 |
| 1973 | 1645 | 千头 | 2026-9 |
| 1972 | 1407 | 千头 | 2026-9 |
| 1971 | 1818 | 千头 | 2026-9 |
| 1970 | 1050 | 千头 | 2026-9 |
| 1969 | 1155 | 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 |