| 序号 | 时间 (年) |
数据 (千公顷) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 38.24 |
| 8 | 2017 | 37.89 |
| 9 | 2016 | 47.83 |
| 10 | 2015 | 23.88 |
| 11 | 2014 | 24.40 |
| 12 | 2013 | 24.66 |
| 13 | 2012 | 24.40 |
| 14 | 2011 | 24.20 |
| 15 | 2010 | 21.38 |
| 16 | 2009 | 24.95 |
| 17 | 2008 | 24.07 |
| 18 | 2007 | 23.57 |
| 19 | 2006 | 25.20 |
| 20 | 2000 | 25.16 |
| 21 | 1990 | 26.12 |
| 22 | 1980 | 32.88 |
| 23 | 1978 | 36.17 |
