| 序号 | 时间 (年) |
数据 (千公顷) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | |
| 8 | 2017 | |
| 9 | 2016 | |
| 10 | 2015 | |
| 11 | 2014 | 27.30 |
| 12 | 2013 | 29.61 |
| 13 | 2012 | 28.31 |
| 14 | 2011 | 30.51 |
| 15 | 2010 | 30.80 |
| 16 | 2009 | 31.55 |
| 17 | 2008 | 29.90 |
| 18 | 2007 | 31.53 |
| 19 | 2006 | 36.07 |
| 20 | 2005 | 35.47 |
| 21 | 2004 | 33.72 |
| 22 | 2003 | 27.54 |
| 23 | 2002 | 30.39 |
| 24 | 2001 | 31.86 |
| 25 | 2000 | 33.36 |
| 26 | 1995 | 29.60 |
| 27 | 1990 | 36.66 |
| 28 | 1985 | 36.55 |
| 29 | 1980 | 39.07 |
| 30 | 1978 | 35.84 |
| 31 | 1975 | 40.84 |
| 32 | 1970 | 39.55 |
| 33 | 1969 | 43.27 |
| 34 | 1965 | 35.32 |
| 35 | 1962 | 32.61 |
| 36 | 1957 | 35.69 |
| 37 | 1952 | 30.41 |
