| 序号 | 时间 (年) |
数据 (千公顷) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 17.04 |
| 8 | 2017 | 17.22 |
| 9 | 2016 | 17.41 |
| 10 | 2015 | 18.59 |
| 11 | 2014 | 20.11 |
| 12 | 2013 | 19.28 |
| 13 | 2012 | 19.64 |
| 14 | 2011 | 18.89 |
| 15 | 2010 | 16.59 |
| 16 | 2009 | 17.60 |
| 17 | 2008 | 19.74 |
| 18 | 2007 | 21.47 |
| 19 | 2006 | 21.16 |
| 20 | 2005 | 21.29 |
| 21 | 2004 | 22.77 |
| 22 | 2003 | 27.73 |
| 23 | 2002 | 26.34 |
| 24 | 2001 | 25.65 |
| 25 | 2000 | 22.07 |
| 26 | 1995 | 13.61 |
| 27 | 1990 | 9.80 |
| 28 | 1985 | 8.68 |
| 29 | 1980 | 5.91 |
| 30 | 1978 | 6.08 |
| 31 | 1975 | 5.90 |
| 32 | 1970 | 6.14 |
| 33 | 1965 | 3.93 |
| 34 | 1962 | 5.85 |
| 35 | 1957 | 5.63 |
| 36 | 1952 | 3.02 |
