| 年度 | 数值 | 单位 | 发布日期 |
| 2026 | 4750 | 千头 | 2026-9 |
| 2025 | 4930 | 千头 | 2026-9 |
| 2024 | 4261 | 千头 | 2026-9 |
| 2023 | 3290 | 千头 | 2026-9 |
| 2022 | 2504 | 千头 | 2026-9 |
| 2021 | 2717 | 千头 | 2026-9 |
| 2020 | 3750 | 千头 | 2026-9 |
| 2019 | 4753 | 千头 | 2026-9 |
| 2018 | 3998 | 千头 | 2026-9 |
| 2017 | 3255 | 千头 | 2026-9 |
| 2016 | 3428 | 千头 | 2026-9 |
| 2015 | 4450 | 千头 | 2026-9 |
| 2014 | 4671 | 千头 | 2026-9 |
| 2013 | 3949 | 千头 | 2026-9 |
| 2012 | 3207 | 千头 | 2026-9 |
| 2011 | 3125 | 千头 | 2026-9 |
| 2010 | 3539 | 千头 | 2026-9 |
| 2009 | 3669 | 千头 | 2026-9 |
| 2008 | 3787 | 千头 | 2026-9 |
| 2007 | 3804 | 千头 | 2026-9 |
| 2006 | 3588 | 千头 | 2026-9 |
| 2005 | 3349 | 千头 | 2026-9 |
| 2004 | 3686 | 千头 | 2026-9 |
| 2003 | 3952 | 千头 | 2026-9 |
| 2002 | 3925 | 千头 | 2026-9 |
| 2001 | 3693 | 千头 | 2026-9 |
| 2000 | 3627 | 千头 | 2026-9 |
| 1999 | 3727 | 千头 | 2026-9 |
| 1998 | 4215 | 千头 | 2026-9 |
| 1997 | 3762 | 千头 | 2026-9 |
| 1996 | 3000 | 千头 | 2026-9 |
| 1995 | 3100 | 千头 | 2026-9 |
| 1994 | 3200 | 千头 | 2026-9 |
| 1993 | 3300 | 千头 | 2026-9 |
| 1992 | 3387 | 千头 | 2026-9 |
| 1991 | 3197 | 千头 | 2026-9 |
| 1990 | 2906 | 千头 | 2026-9 |
| 1989 | 2479 | 千头 | 2026-9 |
| 1988 | 2902 | 千头 | 2026-9 |
| 1987 | 3075 | 千头 | 2026-9 |
| 1986 | 3004 | 千头 | 2026-9 |
| 1985 | 2622 | 千头 | 2026-9 |
| 1984 | 2280 | 千头 | 2026-9 |
| 1983 | 3067 | 千头 | 2026-9 |
| 1982 | 3517 | 千头 | 2026-9 |
| 1981 | 2928 | 千头 | 2026-9 |
| 1980 | 3407 | 千头 | 2026-9 |
| 1979 | 3848 | 千头 | 2026-9 |
| 1978 | 5150 | 千头 | 2026-9 |
| 1977 | 5178 | 千头 | 2026-9 |
| 1976 | 2062 | 千头 | 2026-9 |
| 1975 | 2589 | 千头 | 2026-9 |
| 1974 | 1763 | 千头 | 2026-9 |
| 1973 | 2822 | 千头 | 2026-9 |
| 1972 | 2231 | 千头 | 2026-9 |
| 1971 | 1770 | 千头 | 2026-9 |
| 1970 | 1078 | 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 |