| 序号 | 时间 (年) |
数据 (万公顷) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 17.43 |
| 8 | 2016 | 17.73 |
| 9 | 2015 | 19.01 |
| 10 | 2014 | 18.85 |
| 11 | 2013 | 19.12 |
| 12 | 2012 | 19.00 |
| 13 | 2011 | 19.24 |
| 14 | 2010 | 17.00 |
| 15 | 2009 | 23.83 |
| 16 | 2008 | 25.91 |
| 17 | 2007 | 29.07 |
| 18 | 2006 | 31.33 |
| 19 | 2005 | 27.92 |
| 20 | 2004 | 36.38 |
