单位:千头
时间范围:1960 - 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 | 31366.00 |
7 | 2019 | 30387.00 |
8 | 2018 | 29093.00 |
9 | 2017 | 28371.00 |
10 | 2016 | 27763.00 |
11 | 2015 | 27130.00 |
12 | 2014 | 27089.00 |
13 | 2013 | 27320.00 |
14 | 2012 | 26457.00 |
15 | 2011 | 25994.00 |
16 | 2010 | 25538.00 |
17 | 2009 | 25283.00 |
18 | 2008 | 25405.00 |
19 | 2007 | 24924.00 |
20 | 2006 | 24807.00 |
21 | 2005 | 24749.00 |
22 | 2004 | 24929.00 |
23 | 2003 | 24768.00 |
24 | 2002 | 24798.00 |
25 | 2001 | 24558.00 |
26 | 2000 | 24462.00 |
27 | 1999 | 24560.00 |
28 | 1998 | 25502.00 |
29 | 1997 | 24766.00 |
30 | 1996 | 24703.00 |
31 | 1995 | 26568.00 |
32 | 1994 | 27113.00 |
33 | 1993 | 26033.00 |
34 | 1992 | 24698.00 |
35 | 1991 | 23278.00 |
36 | 1990 | 21593.00 |
37 | 1989 | 23163.00 |
38 | 1988 | 25203.00 |
39 | 1987 | 27079.00 |
40 | 1986 | 28157.00 |
41 | 1985 | 28125.00 |
42 | 1984 | 28340.00 |
43 | 1983 | 33496.00 |
44 | 1982 | 33658.00 |
45 | 1981 | 31893.00 |
46 | 1980 | 32283.00 |
47 | 1979 | 31234.00 |
48 | 1978 | 29886.00 |
49 | 1977 | 27222.00 |
50 | 1976 | 27042.00 |
51 | 1975 | 25202.00 |
52 | 1974 | 12320.00 |
53 | 1973 | 11748.00 |
54 | 1972 | 11375.00 |
55 | 1971 | 9978.00 |
56 | 1970 | 10301.00 |
57 | 1969 | 9981.00 |
58 | 1968 | 9757.00 |
59 | 1967 | 9539.00 |
60 | 1966 | 9094.00 |
61 | 1965 | 8531.00 |
62 | 1964 | 8118.00 |
63 | 1963 | 7408.00 |
64 | 1962 | 6697.00 |
65 | 1961 | 5988.00 |
66 | 1960 | 6078.00 |
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