| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 42 | 千头 | 2026-9 |
| 1997 | 110 | 千头 | 2026-9 |
| 1996 | 12 | 千头 | 2026-9 |
| 1995 | 6 | 千头 | 2026-9 |
| 1994 | 24 | 千头 | 2026-9 |
| 1993 | 10 | 千头 | 2026-9 |
| 1992 | 10 | 千头 | 2026-9 |
| 1991 | 454 | 千头 | 2026-9 |
| 1990 | 270 | 千头 | 2026-9 |
| 1989 | 600 | 千头 | 2026-9 |
| 1988 | 465 | 千头 | 2026-9 |
| 1987 | 405 | 千头 | 2026-9 |
| 1986 | 304 | 千头 | 2026-9 |
| 1985 | 592 | 千头 | 2026-9 |
| 1984 | 524 | 千头 | 2026-9 |
| 1983 | 615 | 千头 | 2026-9 |
| 1982 | 676 | 千头 | 2026-9 |
| 1981 | 585 | 千头 | 2026-9 |
| 1980 | 549 | 千头 | 2026-9 |
| 1979 | 528 | 千头 | 2026-9 |
| 1978 | 533 | 千头 | 2026-9 |
| 1977 | 374 | 千头 | 2026-9 |
| 1976 | 30 | 千头 | 2026-9 |
| 1975 | 178 | 千头 | 2026-9 |
| 1974 | 206 | 千头 | 2026-9 |
| 1973 | 98 | 千头 | 2026-9 |
| 1972 | 450 | 千头 | 2026-9 |
| 1971 | 441 | 千头 | 2026-9 |
| 1970 | 24 | 千头 | 2026-9 |
| 1969 | 10 | 千头 | 2026-9 |
| 1968 | 53 | 千头 | 2026-9 |
| 1967 | 85 | 千头 | 2026-9 |
| 1966 | 0 | 千头 | 2026-9 |
| 1965 | 267 | 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 | 105 | 千头 | 2026-9 |