| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1992 | 469 | 千头 | 2026-9 |
| 1991 | 490 | 千头 | 2026-9 |
| 1990 | 500 | 千头 | 2026-9 |
| 1989 | 480 | 千头 | 2026-9 |
| 1988 | 480 | 千头 | 2026-9 |
| 1987 | 440 | 千头 | 2026-9 |
| 1986 | 265 | 千头 | 2026-9 |
| 1985 | 165 | 千头 | 2026-9 |
| 1984 | 190 | 千头 | 2026-9 |
| 1983 | 161 | 千头 | 2026-9 |
| 1982 | 160 | 千头 | 2026-9 |
| 1981 | 147 | 千头 | 2026-9 |
| 1980 | 120 | 千头 | 2026-9 |
| 1979 | 105 | 千头 | 2026-9 |
| 1978 | 113 | 千头 | 2026-9 |
| 1977 | 95 | 千头 | 2026-9 |
| 1976 | 83 | 千头 | 2026-9 |
| 1975 | 78 | 千头 | 2026-9 |
| 1974 | 92 | 千头 | 2026-9 |
| 1973 | 73 | 千头 | 2026-9 |
| 1972 | 56 | 千头 | 2026-9 |
| 1971 | 58 | 千头 | 2026-9 |
| 1970 | 59 | 千头 | 2026-9 |
| 1969 | 51 | 千头 | 2026-9 |
| 1968 | 44 | 千头 | 2026-9 |
| 1967 | 48 | 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 |