单位:%
时间范围:1960 - 2025
数据来源:美国农业部
序号 | 时间(年) | 数据(%) |
---|---|---|
1 | 2025 | |
2 | 2024 | |
3 | 2023 | |
4 | 2022 | |
5 | 2021 | |
6 | 2020 | 13.87 |
7 | 2019 | 17.14 |
8 | 2018 | 11.88 |
9 | 2017 | 13.02 |
10 | 2016 | 11.63 |
11 | 2015 | 13.04 |
12 | 2014 | 11.56 |
13 | 2013 | 12.00 |
14 | 2012 | 11.00 |
15 | 2011 | 14.00 |
16 | 2010 | 15.00 |
17 | 2009 | 13.00 |
18 | 2008 | 11.00 |
19 | 2007 | 13.00 |
20 | 2006 | 12.10 |
21 | 2005 | 14.50 |
22 | 2004 | 16.14 |
23 | 2003 | 15.37 |
24 | 2002 | 14.66 |
25 | 2001 | 13.84 |
26 | 2000 | 13.60 |
27 | 1999 | 14.33 |
28 | 1998 | 14.04 |
29 | 1997 | 13.21 |
30 | 1996 | 18.46 |
31 | 1995 | 17.41 |
32 | 1994 | 15.48 |
33 | 1993 | 14.74 |
34 | 1992 | 19.14 |
35 | 1991 | 22.65 |
36 | 1990 | 26.15 |
37 | 1989 | 23.82 |
38 | 1988 | 25.52 |
39 | 1987 | 27.74 |
40 | 1986 | 24.44 |
41 | 1985 | 19.75 |
42 | 1984 | 18.73 |
43 | 1983 | 24.56 |
44 | 1982 | 25.38 |
45 | 1981 | 23.15 |
46 | 1980 | 27.35 |
47 | 1979 | 32.95 |
48 | 1978 | 28.73 |
49 | 1977 | 27.05 |
50 | 1976 | 22.78 |
51 | 1975 | 27.00 |
52 | 1974 | 30.60 |
53 | 1973 | 33.81 |
54 | 1972 | 31.91 |
55 | 1971 | 24.97 |
56 | 1970 | 25.88 |
57 | 1969 | 34.73 |
58 | 1968 | 30.63 |
59 | 1967 | 33.17 |
60 | 1966 | 34.27 |
61 | 1965 | 29.24 |
62 | 1964 | 29.64 |
63 | 1963 | 31.34 |
64 | 1962 | 28.79 |
65 | 1961 | 28.86 |
66 | 1960 | 31.67 |
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