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 | 69400.00 |
7 | 2019 | 69000.00 |
8 | 2018 | 68600.00 |
9 | 2017 | 68200.00 |
10 | 2016 | 67500.00 |
11 | 2015 | 67000.00 |
12 | 2014 | 66000.00 |
13 | 2013 | 65000.00 |
14 | 2012 | 63500.00 |
15 | 2011 | 62500.00 |
16 | 2010 | 61000.00 |
17 | 2009 | 60000.00 |
18 | 2008 | 60000.00 |
19 | 2007 | 59000.00 |
20 | 2006 | 58500.00 |
21 | 2005 | 58000.00 |
22 | 2004 | 57000.00 |
23 | 2003 | 54500.00 |
24 | 2002 | 53500.00 |
25 | 2001 | 53000.00 |
26 | 2000 | 52600.00 |
27 | 1999 | 51900.00 |
28 | 1998 | 51000.00 |
29 | 1997 | 50000.00 |
30 | 1996 | 49000.00 |
31 | 1995 | 48000.00 |
32 | 1994 | 42000.00 |
33 | 1993 | 40700.00 |
34 | 1992 | 46421.00 |
35 | 1991 | 47794.00 |
36 | 1990 | 43453.00 |
37 | 1989 | 40419.00 |
38 | 1988 | 40259.00 |
39 | 1987 | 40777.00 |
40 | 1986 | 39480.00 |
41 | 1985 | 39040.00 |
42 | 1984 | 38670.00 |
43 | 1983 | 38280.00 |
44 | 1982 | 37920.00 |
45 | 1981 | 35000.00 |
46 | 1980 | 33110.00 |
47 | 1979 | 32040.00 |
48 | 1978 | 31300.00 |
49 | 1977 | 30840.00 |
50 | 1976 | 30500.00 |
51 | 1975 | 30280.00 |
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