单位:%
时间范围:1980 - 2021
数据来源:DOE
序号 | 时间(年) | 数据(%) |
---|---|---|
1 | 2021 | |
2 | 2020 | |
3 | 2019 | |
4 | 2018 | |
5 | 2017 | |
6 | 2016 | 25.36 |
7 | 2015 | 24.64 |
8 | 2014 | 24.20 |
9 | 2013 | 23.55 |
10 | 2012 | 22.28 |
11 | 2011 | 21.51 |
12 | 2010 | 19.82 |
13 | 2009 | 18.87 |
14 | 2008 | 17.57 |
15 | 2007 | 16.81 |
16 | 2006 | 15.35 |
17 | 2005 | 13.94 |
18 | 2004 | 12.90 |
19 | 2003 | 11.58 |
20 | 2002 | 10.45 |
21 | 2001 | 9.73 |
22 | 2000 | 8.88 |
23 | 1999 | 8.47 |
24 | 1998 | 8.17 |
25 | 1997 | 8.09 |
26 | 1996 | 7.78 |
27 | 1995 | 7.62 |
28 | 1994 | 7.35 |
29 | 1993 | 6.79 |
30 | 1992 | 6.24 |
31 | 1991 | 5.63 |
32 | 1990 | 5.28 |
33 | 1989 | 4.92 |
34 | 1988 | 4.81 |
35 | 1987 | 4.58 |
36 | 1986 | 4.33 |
37 | 1985 | 4.06 |
38 | 1984 | 3.95 |
39 | 1983 | 3.91 |
40 | 1982 | 3.78 |
41 | 1981 | 3.63 |
42 | 1980 | 3.57 |
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