| 序号 | 时间 (年) |
数据 (千公顷) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 491.00 |
| 8 | 2016 | 491.00 |
| 9 | 2015 | 490.00 |
| 10 | 2014 | 487.00 |
| 11 | 2013 | 486.00 |
| 12 | 2010 | 355.54 |
| 13 | 2005 | 343.00 |
| 14 | 2000 | 338.00 |
| 15 | 1995 | 320.00 |
| 16 | 1990 | 310.00 |
| 17 | 1985 | 295.00 |
| 18 | 1980 | 281.00 |
| 19 | 1978 | 273.00 |
