| 年度 | 数值 | 单位 | 发布日期 |
| 1992 | 394 | 千头 | 2026-9 |
| 1991 | 396 | 千头 | 2026-9 |
| 1990 | 398 | 千头 | 2026-9 |
| 1989 | 414 | 千头 | 2026-9 |
| 1988 | 402 | 千头 | 2026-9 |
| 1987 | 382 | 千头 | 2026-9 |
| 1986 | 380 | 千头 | 2026-9 |
| 1985 | 374 | 千头 | 2026-9 |
| 1984 | 370 | 千头 | 2026-9 |
| 1983 | 375 | 千头 | 2026-9 |
| 1982 | 394 | 千头 | 2026-9 |
| 1981 | 397 | 千头 | 2026-9 |
| 1980 | 382 | 千头 | 2026-9 |
| 1979 | 373 | 千头 | 2026-9 |
| 1978 | 370 | 千头 | 2026-9 |
| 1977 | 349 | 千头 | 2026-9 |
| 1976 | 220 | 千头 | 2026-9 |
| 1975 | 200 | 千头 | 2026-9 |
| 1974 | 214 | 千头 | 2026-9 |
| 1973 | 0 | 千头 | 2026-9 |
| 1972 | 0 | 千头 | 2026-9 |
| 1971 | 0 | 千头 | 2026-9 |
| 1970 | 0 | 千头 | 2026-9 |
| 1969 | 0 | 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 |