| 年度 | 数值 | 单位 | 发布日期 |
| 2026 | 27721 | 千头 | 2026-9 |
| 2025 | 27366 | 千头 | 2026-9 |
| 2024 | 27260 | 千头 | 2026-9 |
| 2023 | 27080 | 千头 | 2026-9 |
| 2022 | 25800 | 千头 | 2026-9 |
| 2021 | 23944 | 千头 | 2026-9 |
| 2020 | 23021 | 千头 | 2026-9 |
| 2019 | 23655 | 千头 | 2026-9 |
| 2018 | 25699 | 千头 | 2026-9 |
| 2017 | 26176 | 千头 | 2026-9 |
| 2016 | 24971 | 千头 | 2026-9 |
| 2015 | 27413 | 千头 | 2026-9 |
| 2014 | 29102 | 千头 | 2026-9 |
| 2013 | 29291 | 千头 | 2026-9 |
| 2012 | 28418 | 千头 | 2026-9 |
| 2011 | 28506 | 千头 | 2026-9 |
| 2010 | 27550 | 千头 | 2026-9 |
| 2009 | 27906 | 千头 | 2026-9 |
| 2008 | 27321 | 千头 | 2026-9 |
| 2007 | 28037 | 千头 | 2026-9 |
| 2006 | 28393 | 千头 | 2026-9 |
| 2005 | 28183 | 千头 | 2026-9 |
| 2004 | 27465 | 千头 | 2026-9 |
| 2003 | 26664 | 千头 | 2026-9 |
| 2002 | 27870 | 千头 | 2026-9 |
| 2001 | 27870 | 千头 | 2026-9 |
| 2000 | 27720 | 千头 | 2026-9 |
| 1999 | 27588 | 千头 | 2026-9 |
| 1998 | 26688 | 千头 | 2026-9 |
| 1997 | 26710 | 千头 | 2026-9 |
| 1996 | 26780 | 千头 | 2026-9 |
| 1995 | 26500 | 千头 | 2026-9 |
| 1994 | 25736 | 千头 | 2026-9 |
| 1993 | 25758 | 千头 | 2026-9 |
| 1992 | 25182 | 千头 | 2026-9 |
| 1991 | 25857 | 千头 | 2026-9 |
| 1990 | 25026 | 千头 | 2026-9 |
| 1989 | 24673 | 千头 | 2026-9 |
| 1988 | 23938 | 千头 | 2026-9 |
| 1987 | 23469 | 千头 | 2026-9 |
| 1986 | 23540 | 千头 | 2026-9 |
| 1985 | 23436 | 千头 | 2026-9 |
| 1984 | 22784 | 千头 | 2026-9 |
| 1983 | 22161 | 千头 | 2026-9 |
| 1982 | 22478 | 千头 | 2026-9 |
| 1981 | 24553 | 千头 | 2026-9 |
| 1980 | 25168 | 千头 | 2026-9 |
| 1979 | 26203 | 千头 | 2026-9 |
| 1978 | 27112 | 千头 | 2026-9 |
| 1977 | 29330 | 千头 | 2026-9 |
| 1976 | 31533 | 千头 | 2026-9 |
| 1975 | 33434 | 千头 | 2026-9 |
| 1974 | 32793 | 千头 | 2026-9 |
| 1973 | 30839 | 千头 | 2026-9 |
| 1972 | 29101 | 千头 | 2026-9 |
| 1971 | 27373 | 千头 | 2026-9 |
| 1970 | 24373 | 千头 | 2026-9 |
| 1969 | 22162 | 千头 | 2026-9 |
| 1968 | 20611 | 千头 | 2026-9 |
| 1967 | 19218 | 千头 | 2026-9 |
| 1966 | 18270 | 千头 | 2026-9 |
| 1965 | 17936 | 千头 | 2026-9 |
| 1964 | 18816 | 千头 | 2026-9 |
| 1963 | 19055 | 千头 | 2026-9 |
| 1962 | 18549 | 千头 | 2026-9 |
| 1961 | 18033 | 千头 | 2026-9 |
| 1960 | 17332 | 千头 | 2026-9 |