| 年度 | 数值 | 单位 | 发布日期 |
| 2014 | 1850 | 千头 | 2026-9 |
| 2013 | 1800 | 千头 | 2026-9 |
| 2012 | 1789 | 千头 | 2026-9 |
| 2011 | 1508 | 千头 | 2026-9 |
| 2010 | 1315 | 千头 | 2026-9 |
| 2009 | 1714 | 千头 | 2026-9 |
| 2008 | 1662 | 千头 | 2026-9 |
| 2007 | 1347 | 千头 | 2026-9 |
| 2006 | 1327 | 千头 | 2026-9 |
| 2005 | 1224 | 千头 | 2026-9 |
| 2004 | 1525 | 千头 | 2026-9 |
| 2003 | 1300 | 千头 | 2026-9 |
| 2002 | 1292 | 千头 | 2026-9 |
| 2001 | 1380 | 千头 | 2026-9 |
| 2000 | 1486 | 千头 | 2026-9 |
| 1999 | 1427 | 千头 | 2026-9 |
| 1998 | 1509 | 千头 | 2026-9 |
| 1997 | 1442 | 千头 | 2026-9 |
| 1996 | 1316 | 千头 | 2026-9 |
| 1995 | 1176 | 千头 | 2026-9 |
| 1994 | 1131 | 千头 | 2026-9 |
| 1993 | 1214 | 千头 | 2026-9 |
| 1992 | 1599 | 千头 | 2026-9 |
| 1991 | 1897 | 千头 | 2026-9 |
| 1990 | 1714 | 千头 | 2026-9 |
| 1989 | 1500 | 千头 | 2026-9 |
| 1988 | 1345 | 千头 | 2026-9 |
| 1987 | 1468 | 千头 | 2026-9 |
| 1986 | 1560 | 千头 | 2026-9 |
| 1985 | 1510 | 千头 | 2026-9 |
| 1984 | 1430 | 千头 | 2026-9 |
| 1983 | 1341 | 千头 | 2026-9 |
| 1982 | 1709 | 千头 | 2026-9 |
| 1981 | 1700 | 千头 | 2026-9 |
| 1980 | 1565 | 千头 | 2026-9 |
| 1979 | 1331 | 千头 | 2026-9 |
| 1978 | 1079 | 千头 | 2026-9 |
| 1977 | 1039 | 千头 | 2026-9 |
| 1976 | 1307 | 千头 | 2026-9 |
| 1975 | 1132 | 千头 | 2026-9 |
| 1974 | 891 | 千头 | 2026-9 |
| 1973 | 776 | 千头 | 2026-9 |
| 1972 | 1015 | 千头 | 2026-9 |
| 1971 | 1213 | 千头 | 2026-9 |
| 1970 | 1050 | 千头 | 2026-9 |
| 1969 | 850 | 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 |