| 序号 | 时间 (年) |
数据 (千公顷) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 42.94 |
| 8 | 2014 | 58.79 |
| 9 | 2013 | 59.88 |
| 10 | 2012 | 58.38 |
| 11 | 2011 | 57.77 |
| 12 | 2010 | 61.87 |
| 13 | 2009 | 62.34 |
| 14 | 2008 | 62.14 |
| 15 | 2007 | 60.94 |
| 16 | 2006 | 61.97 |
| 17 | 2005 | 62.36 |
| 18 | 2004 | 61.79 |
| 19 | 2003 | 62.35 |
| 20 | 2002 | 62.68 |
| 21 | 2001 | 63.27 |
| 22 | 2000 | 63.94 |
| 23 | 1995 | 65.55 |
| 24 | 1990 | 66.26 |
| 25 | 1986 | 63.53 |
