| 序号 | 时间 (年) |
数据 (千公顷) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | 53.94 |
| 8 | 2008 | 47.40 |
| 9 | 2007 | 47.40 |
| 10 | 2006 | 47.40 |
| 11 | 2005 | 47.40 |
| 12 | 2004 | 47.80 |
| 13 | 2003 | 47.37 |
| 14 | 2002 | 47.57 |
| 15 | 2001 | 44.13 |
| 16 | 2000 | 41.34 |
| 17 | 1999 | 35.06 |
| 18 | 1998 | 35.05 |
| 19 | 1997 | 35.14 |
| 20 | 1996 | 35.23 |
| 21 | 1995 | 35.00 |
| 22 | 1994 | 35.40 |
| 23 | 1993 | 35.40 |
| 24 | 1992 | 35.50 |
| 25 | 1991 | 35.60 |
| 26 | 1990 | 35.70 |
| 27 | 1989 | 36.00 |
| 28 | 1988 | 35.88 |
| 29 | 1987 | 36.35 |
| 30 | 1986 | 36.35 |
| 31 | 1985 | 36.08 |
| 32 | 1984 | 36.15 |
| 33 | 1983 | 36.15 |
| 34 | 1982 | 36.48 |
| 35 | 1981 | 36.55 |
| 36 | 1980 | 36.62 |
| 37 | 1979 | 37.09 |
| 38 | 1978 | 37.15 |
