| 年份 | 单位：万头 |
| 含“(E)”其对应值为系统预测，仅供参考。 | |
| 2026（E） | 购买后可见 » |
| 2025（E） | 购买后可见 » |
| 2024（E） | 购买后可见 » |
| 2023 | 购买后可见 » |
| 2022 | 购买后可见 » |
| 2021 | 购买后可见 » |
| 2020 | 购买后可见 » |
| 2019 | 购买后可见 » |
| 2018 | 购买后可见 » |
| 2017 | 购买后可见 » |
| 2016 | 购买后可见 » |
| 2015 | 购买后可见 » |
| 2014 | 购买后可见 » |
| 2013 | 47411.26 |
| 2012 | 47492.00 |
| 2011 | 46766.90 |
| 2010 | 46460.00 |
| 2009 | 46996.00 |
| 2008 | 46291.30 |
| 2007 | 43989.50 |
| 2006 | 41850.40 |
| 2005 | 43319.11 |
| 2004 | 42123.40 |
| 2003 | 41381.81 |
| 2002 | 41776.22 |
| 2001 | 41950.46 |
| 2000 | 41633.61 |
| 1999 | 43144.20 |
| 1998 | 42256.30 |
| 1997 | 40034.80 |
| 1996 | 36283.60 |
| 1995 | 44169.20 |
| 1994 | 41461.50 |
| 1993 | 39300.10 |
| 1992 | 38421.10 |
| 1991 | 36964.60 |
| 1990 | 36241.00 |
| 1989 | 35281.00 |
| 1988 | 34222.00 |
| 1987 | 32773.00 |
| 1986 | 33719.00 |
| 1985 | 33140.00 |
| 1984 | 30679.00 |
| 1983 | 29854.00 |
| 1982 | 30078.00 |
| 1981 | 29370.00 |
| 1980 | 30543.00 |
| 1979 | 31971.00 |
| 1978 | 30129.00 |
| 1977 | 29178.00 |
| 1976 | 28725.00 |
| 1975 | 28117.00 |
| 1974 | 26078.00 |
| 1973 | 25794.00 |
| 1972 | 26368.00 |
| 1971 | 25035.00 |
| 1970 | 2061.00 |
| 1969 | 17251.00 |
| 1968 | 17863.00 |
| 1967 | 19006.00 |
| 1966 | 19336.00 |
| 1965 | 16693.00 |
| 1964 | 15247.00 |
| 1963 | 13180.00 |
| 1962 | 9997.00 |
| 1961 | 7552.00 |
| 1960 | 827.00 |
| 1959 | 12042.00 |
| 1958 | 13529.00 |
| 1957 | 14590.00 |
| 1956 | 8403.00 |
| 1955 | 8792.00 |
| 1954 | 10712.00 |
| 1953 | 9613.00 |
| 1952 | 8977.00 |
| 1951 | 7440.00 |
| 1950 | 6401.00 |
| 1949 | 5775.00 |
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