| 序号 |
时间(年) |
数据(单位：平方公里) |
| 1 |
2019 |
|
| 2 |
2018 |
|
| 3 |
2016 |
|
| 4 |
2015 |
|
| 5 |
2014 |
|
| 6 |
2013 |
|
| 7 |
2012 |
845.00 |
| 8 |
2011 |
780.00 |
| 9 |
2010 |
783.00 |
| 10 |
2009 |
719.00 |
| 11 |
2008 |
674.00 |
| 12 |
2007 |
605.00 |
| 13 |
2006 |
631.00 |
| 14 |
2005 |
541.00 |
| 15 |
2004 |
511.00 |
| 16 |
2003 |
488.00 |
| 17 |
2002 |
455.00 |
| 18 |
2001 |
436.00 |
| 19 |
2000 |
409.00 |
| 20 |
1999 |
381.00 |
| 21 |
1998 |
335.00 |
| 22 |
1997 |
334.00 |
| 23 |
1996 |
387.00 |
| 24 |
1995 |
383.00 |
| 25 |
1994 |
388.00 |
| 26 |
1993 |
396.00 |
| 27 |
1991 |
352.00 |
| 28 |
1990 |
332.00 |
| 29 |
1989 |
413.00 |
| 30 |
1988 |
389.00 |
| 31 |
1987 |
265.00 |
| 32 |
1986 |
260.00 |
| 33 |
1985 |
229.00 |
| 34 |
1984 |
221.00 |
