单位:千头
时间范围:1977 - 2024
数据来源:美国农业部
| 序号 | 时间(年) | 数据(千头) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | 1940.00 |
| 7 | 2018 | 1930.00 |
| 8 | 2017 | 1850.00 |
| 9 | 2016 | 1850.00 |
| 10 | 2015 | 1780.00 |
| 11 | 2014 | 1700.00 |
| 12 | 2013 | 1620.00 |
| 13 | 2012 | 1550.00 |
| 14 | 2011 | 1700.00 |
| 15 | 2010 | 1650.00 |
| 16 | 2009 | 1822.00 |
| 17 | 2008 | 1825.00 |
| 18 | 2007 | 1987.00 |
| 19 | 2006 | 2150.00 |
| 20 | 2005 | 2250.00 |
| 21 | 2004 | 2260.00 |
| 22 | 2003 | 2285.00 |
| 23 | 2002 | 2217.00 |
| 24 | 2001 | 2165.00 |
| 25 | 2000 | 2158.00 |
| 26 | 1999 | 2035.00 |
| 27 | 1998 | 2112.00 |
| 28 | 1997 | 2350.00 |
| 29 | 1996 | 2305.00 |
| 30 | 1995 | 2224.00 |
| 31 | 1994 | 2173.00 |
| 32 | 1993 | 2125.00 |
| 33 | 1992 | 2344.00 |
| 34 | 1991 | 2540.00 |
| 35 | 1990 | 2536.00 |
| 36 | 1989 | 2498.00 |
| 37 | 1988 | 2474.00 |
| 38 | 1987 | 2437.00 |
| 39 | 1986 | 2415.00 |
| 40 | 1985 | 2345.00 |
| 41 | 1984 | 2285.00 |
| 42 | 1983 | 2232.00 |
| 43 | 1982 | 2165.00 |
| 44 | 1981 | 2104.00 |
| 45 | 1980 | 1985.00 |
| 46 | 1979 | 2134.00 |
| 47 | 1978 | 2093.00 |
| 48 | 1977 | 2106.00 |
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