单位:千头
时间范围:1975 - 2025
数据来源:美国农业部
序号 | 时间(年) | 数据(千头) |
---|---|---|
1 | 2025 | |
2 | 2024 | |
3 | 2023 | |
4 | 2022 | |
5 | 2021 | |
6 | 2020 | 31300.00 |
7 | 2019 | 29900.00 |
8 | 2018 | 29500.00 |
9 | 2017 | 29500.00 |
10 | 2016 | 29500.00 |
11 | 2015 | 29750.00 |
12 | 2014 | 29450.00 |
13 | 2013 | 29900.00 |
14 | 2012 | 32100.00 |
15 | 2011 | 35000.00 |
16 | 2010 | 34000.00 |
17 | 2009 | 34000.00 |
18 | 2008 | 32912.00 |
19 | 2007 | 28832.00 |
20 | 2006 | 30000.00 |
21 | 2005 | 31302.00 |
22 | 2004 | 30607.00 |
23 | 2003 | 35730.00 |
24 | 2002 | 36000.00 |
25 | 2001 | 36750.00 |
26 | 2000 | 37750.00 |
27 | 1999 | 38750.00 |
28 | 1998 | 39750.00 |
29 | 1997 | 41564.00 |
30 | 1996 | 40500.00 |
31 | 1995 | 39500.00 |
32 | 1994 | 30200.00 |
33 | 1993 | 30300.00 |
34 | 1992 | 34900.00 |
35 | 1991 | 28135.00 |
36 | 1990 | 27709.00 |
37 | 1989 | 28502.00 |
38 | 1988 | 27224.00 |
39 | 1987 | 27425.00 |
40 | 1986 | 27000.00 |
41 | 1985 | 30480.00 |
42 | 1984 | 30325.00 |
43 | 1983 | 30180.00 |
44 | 1982 | 30080.00 |
45 | 1981 | 24460.00 |
46 | 1980 | 25255.00 |
47 | 1979 | 24265.00 |
48 | 1978 | 23625.00 |
49 | 1977 | 23325.00 |
50 | 1976 | 24975.00 |
51 | 1975 | 24845.00 |
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