| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2014 | 18400 | 千头 | 2026-9 |
| 2013 | 19900 | 千头 | 2026-9 |
| 2012 | 21550 | 千头 | 2026-9 |
| 2011 | 23579 | 千头 | 2026-9 |
| 2010 | 25156 | 千头 | 2026-9 |
| 2009 | 27329 | 千头 | 2026-9 |
| 2008 | 26432 | 千头 | 2026-9 |
| 2007 | 25594 | 千头 | 2026-9 |
| 2006 | 25400 | 千头 | 2026-9 |
| 2005 | 26825 | 千头 | 2026-9 |
| 2004 | 24270 | 千头 | 2026-9 |
| 2003 | 23487 | 千头 | 2026-9 |
| 2002 | 21650 | 千头 | 2026-9 |
| 2001 | 21327 | 千头 | 2026-9 |
| 2000 | 20600 | 千头 | 2026-9 |
| 1999 | 20300 | 千头 | 2026-9 |
| 1998 | 19800 | 千头 | 2026-9 |
| 1997 | 19507 | 千头 | 2026-9 |
| 1996 | 19038 | 千头 | 2026-9 |
| 1995 | 18478 | 千头 | 2026-9 |
| 1994 | 17556 | 千头 | 2026-9 |
| 1993 | 17142 | 千头 | 2026-9 |
| 1992 | 16653 | 千头 | 2026-9 |
| 1991 | 16118 | 千头 | 2026-9 |
| 1990 | 16225 | 千头 | 2026-9 |
| 1989 | 16835 | 千头 | 2026-9 |
| 1988 | 17627 | 千头 | 2026-9 |
| 1987 | 18400 | 千头 | 2026-9 |
| 1986 | 18819 | 千头 | 2026-9 |
| 1985 | 19904 | 千头 | 2026-9 |
| 1984 | 21188 | 千头 | 2026-9 |
| 1983 | 21694 | 千头 | 2026-9 |
| 1982 | 21738 | 千头 | 2026-9 |
| 1981 | 22029 | 千头 | 2026-9 |
| 1980 | 22497 | 千头 | 2026-9 |
| 1979 | 22814 | 千头 | 2026-9 |
| 1978 | 22327 | 千头 | 2026-9 |
| 1977 | 21825 | 千头 | 2026-9 |
| 1976 | 21294 | 千头 | 2026-9 |
| 1975 | 20925 | 千头 | 2026-9 |
| 1974 | 20542 | 千头 | 2026-9 |
| 1973 | 19872 | 千头 | 2026-9 |
| 1972 | 19200 | 千头 | 2026-9 |
| 1971 | 20200 | 千头 | 2026-9 |
| 1970 | 24162 | 千头 | 2026-9 |
| 1969 | 19760 | 千头 | 2026-9 |
| 1968 | 19500 | 千头 | 2026-9 |
| 1967 | 18700 | 千头 | 2026-9 |
| 1966 | 17900 | 千头 | 2026-9 |
| 1965 | 17300 | 千头 | 2026-9 |
| 1964 | 17000 | 千头 | 2026-9 |
| 1963 | 16700 | 千头 | 2026-9 |
| 1962 | 16400 | 千头 | 2026-9 |
| 1961 | 16000 | 千头 | 2026-9 |
| 1960 | 15500 | 千头 | 2026-9 |