| 年度 | 数值 | 单位 | 发布日期 |
| 2016 | 5040 | 千头 | 2026-9 |
| 2015 | 4957 | 千头 | 2026-9 |
| 2014 | 4812 | 千头 | 2026-9 |
| 2013 | 4777 | 千头 | 2026-9 |
| 2012 | 4728 | 千头 | 2026-9 |
| 2011 | 4663 | 千头 | 2026-9 |
| 2010 | 4617 | 千头 | 2026-9 |
| 2009 | 4500 | 千头 | 2026-9 |
| 2008 | 4796 | 千头 | 2026-9 |
| 2007 | 5327 | 千头 | 2026-9 |
| 2006 | 5320 | 千头 | 2026-9 |
| 2005 | 5373 | 千头 | 2026-9 |
| 2004 | 5440 | 千头 | 2026-9 |
| 2003 | 5724 | 千头 | 2026-9 |
| 2002 | 5788 | 千头 | 2026-9 |
| 2001 | 5115 | 千头 | 2026-9 |
| 2000 | 5014 | 千头 | 2026-9 |
| 1999 | 5037 | 千头 | 2026-9 |
| 1998 | 5212 | 千头 | 2026-9 |
| 1997 | 4846 | 千头 | 2026-9 |
| 1996 | 4750 | 千头 | 2026-9 |
| 1995 | 5120 | 千头 | 2026-9 |
| 1994 | 5190 | 千头 | 2026-9 |
| 1993 | 5032 | 千头 | 2026-9 |
| 1992 | 5132 | 千头 | 2026-9 |
| 1991 | 4865 | 千头 | 2026-9 |
| 1990 | 4910 | 千头 | 2026-9 |
| 1989 | 5010 | 千头 | 2026-9 |
| 1988 | 4814 | 千头 | 2026-9 |
| 1987 | 4705 | 千头 | 2026-9 |
| 1986 | 4530 | 千头 | 2026-9 |
| 1985 | 4458 | 千头 | 2026-9 |
| 1984 | 4305 | 千头 | 2026-9 |
| 1983 | 4225 | 千头 | 2026-9 |
| 1982 | 4016 | 千头 | 2026-9 |
| 1981 | 4159 | 千头 | 2026-9 |
| 1980 | 4258 | 千头 | 2026-9 |
| 1979 | 3661 | 千头 | 2026-9 |
| 1978 | 3646 | 千头 | 2026-9 |
| 1977 | 4595 | 千头 | 2026-9 |
| 1976 | 3384 | 千头 | 2026-9 |
| 1975 | 3303 | 千头 | 2026-9 |
| 1974 | 3707 | 千头 | 2026-9 |
| 1973 | 4710 | 千头 | 2026-9 |
| 1972 | 4323 | 千头 | 2026-9 |
| 1971 | 3763 | 千头 | 2026-9 |
| 1970 | 3629 | 千头 | 2026-9 |
| 1969 | 3529 | 千头 | 2026-9 |
| 1968 | 3181 | 千头 | 2026-9 |
| 1967 | 2949 | 千头 | 2026-9 |
| 1966 | 2849 | 千头 | 2026-9 |
| 1965 | 2649 | 千头 | 2026-9 |
| 1964 | 2370 | 千头 | 2026-9 |
| 1963 | 2291 | 千头 | 2026-9 |
| 1962 | 2542 | 千头 | 2026-9 |
| 1961 | 2338 | 千头 | 2026-9 |
| 1960 | 2134 | 千头 | 2026-9 |