| 序号 |
时间(年) |
数据(单位：千公顷) |
| 1 |
2021 |
|
| 2 |
2020 |
|
| 3 |
2019 |
|
| 4 |
2018 |
|
| 5 |
2017 |
|
| 6 |
2016 |
|
| 7 |
2015 |
87.11 |
| 8 |
2014 |
44.34 |
| 9 |
2013 |
100.18 |
| 10 |
2012 |
63.06 |
| 11 |
2011 |
212.72 |
| 12 |
2010 |
29.87 |
| 13 |
2009 |
33.26 |
| 14 |
2008 |
32.81 |
| 15 |
2007 |
35.45 |
| 16 |
2006 |
23.18 |
| 17 |
2005 |
24.22 |
| 18 |
2004 |
16.31 |
| 19 |
2003 |
16.72 |
| 20 |
2002 |
17.49 |
| 21 |
2001 |
21.01 |
| 22 |
2000 |
24.50 |
| 23 |
1999 |
23.93 |
| 24 |
1998 |
25.12 |
| 25 |
1997 |
29.99 |
| 26 |
1996 |
34.45 |
| 27 |
1995 |
41.74 |
| 28 |
1994 |
45.56 |
| 29 |
1993 |
63.77 |
| 30 |
1992 |
223.03 |
| 31 |
1991 |
306.02 |
| 32 |
1990 |
303.91 |
| 33 |
1989 |
242.94 |
| 34 |
1988 |
192.39 |
| 35 |
1987 |
166.12 |
| 36 |
1986 |
209.67 |
| 37 |
1985 |
282.83 |
| 38 |
1980 |
175.13 |
| 39 |
1978 |
194.71 |
| 40 |
1975 |
192.75 |
| 41 |
1970 |
173.49 |
| 42 |
1965 |
172.65 |
| 43 |
1962 |
55.89 |
| 44 |
1957 |
127.60 |
| 45 |
1952 |
34.31 |
