| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2009 | 63 | 千头 | 2026-9 |
| 2008 | 62 | 千头 | 2026-9 |
| 2007 | 63 | 千头 | 2026-9 |
| 2006 | 49 | 千头 | 2026-9 |
| 2005 | 50 | 千头 | 2026-9 |
| 2004 | 55 | 千头 | 2026-9 |
| 2003 | 40 | 千头 | 2026-9 |
| 2002 | 30 | 千头 | 2026-9 |
| 2001 | 30 | 千头 | 2026-9 |
| 2000 | 35 | 千头 | 2026-9 |
| 1999 | 40 | 千头 | 2026-9 |
| 1998 | 35 | 千头 | 2026-9 |
| 1997 | 33 | 千头 | 2026-9 |
| 1996 | 29 | 千头 | 2026-9 |
| 1995 | 40 | 千头 | 2026-9 |
| 1994 | 39 | 千头 | 2026-9 |
| 1993 | 63 | 千头 | 2026-9 |
| 1992 | 68 | 千头 | 2026-9 |
| 1991 | 85 | 千头 | 2026-9 |
| 1990 | 90 | 千头 | 2026-9 |
| 1989 | 85 | 千头 | 2026-9 |
| 1988 | 89 | 千头 | 2026-9 |
| 1987 | 100 | 千头 | 2026-9 |
| 1986 | 98 | 千头 | 2026-9 |
| 1985 | 100 | 千头 | 2026-9 |
| 1984 | 99 | 千头 | 2026-9 |
| 1983 | 100 | 千头 | 2026-9 |
| 1982 | 120 | 千头 | 2026-9 |
| 1981 | 115 | 千头 | 2026-9 |
| 1980 | 177 | 千头 | 2026-9 |
| 1979 | 197 | 千头 | 2026-9 |
| 1978 | 175 | 千头 | 2026-9 |
| 1977 | 177 | 千头 | 2026-9 |
| 1976 | 141 | 千头 | 2026-9 |
| 1975 | 124 | 千头 | 2026-9 |
| 1974 | 137 | 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 |