| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 245 | 千头 | 2026-9 |
| 1997 | 250 | 千头 | 2026-9 |
| 1996 | 260 | 千头 | 2026-9 |
| 1995 | 267 | 千头 | 2026-9 |
| 1994 | 270 | 千头 | 2026-9 |
| 1993 | 310 | 千头 | 2026-9 |
| 1992 | 350 | 千头 | 2026-9 |
| 1991 | 623 | 千头 | 2026-9 |
| 1990 | 463 | 千头 | 2026-9 |
| 1989 | 475 | 千头 | 2026-9 |
| 1988 | 540 | 千头 | 2026-9 |
| 1987 | 550 | 千头 | 2026-9 |
| 1986 | 520 | 千头 | 2026-9 |
| 1985 | 495 | 千头 | 2026-9 |
| 1984 | 1282 | 千头 | 2026-9 |
| 1983 | 1260 | 千头 | 2026-9 |
| 1982 | 1545 | 千头 | 2026-9 |
| 1981 | 1594 | 千头 | 2026-9 |
| 1980 | 1594 | 千头 | 2026-9 |
| 1979 | 1693 | 千头 | 2026-9 |
| 1978 | 1561 | 千头 | 2026-9 |
| 1977 | 1507 | 千头 | 2026-9 |
| 1976 | 1514 | 千头 | 2026-9 |
| 1975 | 1498 | 千头 | 2026-9 |
| 1974 | 1470 | 千头 | 2026-9 |
| 1973 | 1419 | 千头 | 2026-9 |
| 1972 | 1371 | 千头 | 2026-9 |
| 1971 | 1313 | 千头 | 2026-9 |
| 1970 | 1115 | 千头 | 2026-9 |
| 1969 | 1102 | 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 |