| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 325 | 千头 | 2026-9 |
| 1997 | 354 | 千头 | 2026-9 |
| 1996 | 383 | 千头 | 2026-9 |
| 1995 | 372 | 千头 | 2026-9 |
| 1994 | 402 | 千头 | 2026-9 |
| 1993 | 400 | 千头 | 2026-9 |
| 1992 | 657 | 千头 | 2026-9 |
| 1991 | 621 | 千头 | 2026-9 |
| 1990 | 678 | 千头 | 2026-9 |
| 1989 | 632 | 千头 | 2026-9 |
| 1988 | 514 | 千头 | 2026-9 |
| 1987 | 516 | 千头 | 2026-9 |
| 1986 | 590 | 千头 | 2026-9 |
| 1985 | 605 | 千头 | 2026-9 |
| 1984 | 645 | 千头 | 2026-9 |
| 1983 | 637 | 千头 | 2026-9 |
| 1982 | 656 | 千头 | 2026-9 |
| 1981 | 641 | 千头 | 2026-9 |
| 1980 | 628 | 千头 | 2026-9 |
| 1979 | 629 | 千头 | 2026-9 |
| 1978 | 623 | 千头 | 2026-9 |
| 1977 | 625 | 千头 | 2026-9 |
| 1976 | 730 | 千头 | 2026-9 |
| 1975 | 725 | 千头 | 2026-9 |
| 1974 | 0 | 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 |