单位:吨/公顷
时间范围:1987 - 2025
数据来源:美国农业部
序号 | 时间(年) | 数据(吨/公顷) |
---|---|---|
1 | 2025 | |
2 | 2024 | |
3 | 2023 | |
4 | 2022 | |
5 | 2021 | |
6 | 2020 | 1.41 |
7 | 2019 | 1.29 |
8 | 2018 | 1.30 |
9 | 2017 | 1.52 |
10 | 2016 | 1.71 |
11 | 2015 | 1.43 |
12 | 2014 | 1.57 |
13 | 2013 | 1.39 |
14 | 2012 | 1.30 |
15 | 2011 | 1.32 |
16 | 2010 | 1.52 |
17 | 2009 | 1.82 |
18 | 2008 | 1.36 |
19 | 2007 | 1.49 |
20 | 2006 | 1.37 |
21 | 2005 | 1.85 |
22 | 2004 | 2.11 |
23 | 2003 | 1.78 |
24 | 2002 | 1.95 |
25 | 2001 | 2.05 |
26 | 2000 | 1.50 |
27 | 1999 | 1.29 |
28 | 1998 | 1.47 |
29 | 1997 | 1.44 |
30 | 1996 | 1.25 |
31 | 1995 | 1.21 |
32 | 1994 | 1.35 |
33 | 1993 | 1.20 |
34 | 1992 | 1.18 |
35 | 1991 | 1.31 |
36 | 1990 | 1.53 |
37 | 1989 | 1.63 |
38 | 1988 | 1.34 |
39 | 1987 | 1.16 |
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