| 序号 | 时间 (年) |
数据 (千公顷) |
|---|---|---|
| 1 | 2018 | |
| 2 | 2017 | |
| 3 | 2016 | |
| 4 | 2015 | |
| 5 | 2014 | |
| 6 | 2013 | |
| 7 | 2012 | |
| 8 | 2011 | |
| 9 | 2010 | |
| 10 | 2009 | |
| 11 | 2008 | 75.48 |
| 12 | 2007 | 75.80 |
| 13 | 2006 | 75.92 |
| 14 | 2005 | 76.44 |
| 15 | 2004 | 76.56 |
| 16 | 2003 | 76.72 |
| 17 | 2002 | 76.93 |
| 18 | 2001 | 77.13 |
| 19 | 2000 | 77.22 |
| 20 | 1999 | 77.05 |
| 21 | 1998 | 77.03 |
| 22 | 1997 | 77.44 |
| 23 | 1996 | 77.91 |
| 24 | 1995 | 77.97 |
| 25 | 1994 | 79.97 |
| 26 | 1993 | 80.20 |
| 27 | 1992 | 80.38 |
| 28 | 1991 | 80.45 |
| 29 | 1990 | 80.62 |
| 30 | 1989 | 80.73 |
| 31 | 1988 | 80.77 |
| 32 | 1987 | 80.86 |
| 33 | 1986 | 81.12 |
| 34 | 1985 | 81.19 |
| 35 | 1984 | 82.46 |
| 36 | 1983 | 82.67 |
| 37 | 1982 | 82.73 |
| 38 | 1981 | 82.87 |
| 39 | 1980 | 83.03 |
| 40 | 1979 | 83.64 |
| 41 | 1978 | 83.81 |
