| 年度 | 数值 | 单位 | 发布日期 |
| 2004 | 0 | 千头 | 2026-9 |
| 2003 | 0 | 千头 | 2026-9 |
| 2002 | 700 | 千头 | 2026-9 |
| 2001 | 700 | 千头 | 2026-9 |
| 2000 | 800 | 千头 | 2026-9 |
| 1999 | 780 | 千头 | 2026-9 |
| 1998 | 850 | 千头 | 2026-9 |
| 1997 | 850 | 千头 | 2026-9 |
| 1996 | 700 | 千头 | 2026-9 |
| 1995 | 750 | 千头 | 2026-9 |
| 1994 | 650 | 千头 | 2026-9 |
| 1993 | 650 | 千头 | 2026-9 |
| 1992 | 549 | 千头 | 2026-9 |
| 1991 | 612 | 千头 | 2026-9 |
| 1990 | 620 | 千头 | 2026-9 |
| 1989 | 514 | 千头 | 2026-9 |
| 1988 | 481 | 千头 | 2026-9 |
| 1987 | 435 | 千头 | 2026-9 |
| 1986 | 551 | 千头 | 2026-9 |
| 1985 | 587 | 千头 | 2026-9 |
| 1984 | 408 | 千头 | 2026-9 |
| 1983 | 467 | 千头 | 2026-9 |
| 1982 | 664 | 千头 | 2026-9 |
| 1981 | 467 | 千头 | 2026-9 |
| 1980 | 499 | 千头 | 2026-9 |
| 1979 | 0 | 千头 | 2026-9 |
| 1978 | 438 | 千头 | 2026-9 |
| 1977 | 399 | 千头 | 2026-9 |
| 1976 | 376 | 千头 | 2026-9 |
| 1975 | 363 | 千头 | 2026-9 |
| 1974 | 345 | 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 |