| 年度 | 数值 | 单位 | 发布日期 |
| 1990 | 10966 | 千头 | 2026-9 |
| 1989 | 13144 | 千头 | 2026-9 |
| 1988 | 14168 | 千头 | 2026-9 |
| 1987 | 14100 | 千头 | 2026-9 |
| 1986 | 14132 | 千头 | 2026-9 |
| 1985 | 14268 | 千头 | 2026-9 |
| 1984 | 13929 | 千头 | 2026-9 |
| 1983 | 13440 | 千头 | 2026-9 |
| 1982 | 13419 | 千头 | 2026-9 |
| 1981 | 13879 | 千头 | 2026-9 |
| 1980 | 12843 | 千头 | 2026-9 |
| 1979 | 12318 | 千头 | 2026-9 |
| 1978 | 12198 | 千头 | 2026-9 |
| 1977 | 11289 | 千头 | 2026-9 |
| 1976 | 11801 | 千头 | 2026-9 |
| 1975 | 11902 | 千头 | 2026-9 |
| 1974 | 10829 | 千头 | 2026-9 |
| 1973 | 10285 | 千头 | 2026-9 |
| 1972 | 9856 | 千头 | 2026-9 |
| 1971 | 9398 | 千头 | 2026-9 |
| 1970 | 8900 | 千头 | 2026-9 |
| 1969 | 9501 | 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 |