单位:千头
时间范围:1988 - 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 | 8569.00 |
7 | 2019 | 8565.00 |
8 | 2018 | 8813.00 |
9 | 2017 | 8767.00 |
10 | 2016 | 9296.00 |
11 | 2015 | 9624.00 |
12 | 2014 | 9527.00 |
13 | 2013 | 9465.00 |
14 | 2012 | 8538.00 |
15 | 2011 | 8109.00 |
16 | 2010 | 8176.00 |
17 | 2009 | 7400.00 |
18 | 2008 | 6619.00 |
19 | 2007 | 6986.00 |
20 | 2006 | 7543.00 |
21 | 2005 | 6865.00 |
22 | 2004 | 6254.00 |
23 | 2003 | 7070.00 |
24 | 2002 | 8509.00 |
25 | 2001 | 8153.00 |
26 | 2000 | 7156.00 |
27 | 1999 | 9488.00 |
28 | 1998 | 10189.00 |
29 | 1997 | 12077.00 |
30 | 1996 | 14128.00 |
31 | 1995 | 15175.00 |
32 | 1994 | 16689.00 |
33 | 1993 | 18601.00 |
34 | 1992 | 18135.00 |
35 | 1991 | 19986.00 |
36 | 1990 | 22783.00 |
37 | 1989 | 21563.00 |
38 | 1988 | 21613.00 |
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