| 序号 | 时间 (年) |
数据 (公顷) |
|---|---|---|
| 1 | 2019 | |
| 2 | 2018 | |
| 3 | 2016 | |
| 4 | 2015 | |
| 5 | 2014 | |
| 6 | 2013 | |
| 7 | 2012 | 43009.00 |
| 8 | 2011 | 41105.00 |
| 9 | 2010 | 38737.00 |
| 10 | 2009 | 33073.00 |
| 11 | 2008 | 31372.00 |
| 12 | 2007 | 23816.00 |
| 13 | 2006 | 22510.00 |
| 14 | 2005 | 19607.00 |
| 15 | 2004 | 17928.00 |
| 16 | 2003 | 16918.00 |
| 17 | 2002 | 13655.00 |
| 18 | 2001 | 12854.00 |
| 19 | 2000 | 12285.00 |
| 20 | 1999 | 11350.00 |
| 21 | 1998 | 10493.00 |
| 22 | 1997 | 9474.00 |
| 23 | 1996 | 11561.00 |
| 24 | 1995 | 10002.00 |
| 25 | 1994 | 7031.00 |
| 26 | 1993 | 6213.00 |
| 27 | 1991 | 5965.00 |
| 28 | 1990 | 4835.00 |
| 29 | 1989 | 3723.00 |
