| 序号 | 时间 (年) |
数据 (千公顷) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 1.59 |
| 8 | 2017 | 1.47 |
| 9 | 2016 | 1.83 |
| 10 | 2015 | 2.11 |
| 11 | 2014 | 2.48 |
| 12 | 2013 | 3.44 |
| 13 | 2012 | 3.63 |
| 14 | 2011 | 3.86 |
| 15 | 2010 | 3.98 |
| 16 | 2009 | 4.95 |
| 17 | 2008 | 4.92 |
| 18 | 2007 | 5.74 |
| 19 | 2006 | 8.04 |
| 20 | 2005 | 10.38 |
| 21 | 2004 | 11.83 |
| 22 | 2003 | 23.11 |
| 23 | 2002 | 24.24 |
| 24 | 2001 | 17.96 |
| 25 | 2000 | 33.15 |
| 26 | 1995 | 14.81 |
| 27 | 1990 | 19.52 |
| 28 | 1985 | 37.33 |
| 29 | 1980 | 7.88 |
| 30 | 1978 | 6.75 |
| 31 | 1975 | 8.83 |
| 32 | 1970 | 4.06 |
| 33 | 1965 | 4.44 |
| 34 | 1962 | 4.10 |
| 35 | 1957 | 6.62 |
| 36 | 1952 | 9.27 |
