| 年份 | 行政区域土地面积 (平方公里) |
绿化覆盖率 (%) |
|---|---|---|
| 2018 | ||
| 2017 | ||
| 2016 | ||
| 2015 | 2246.00 | 44.93 |
| 2014 | 2246.00 | 44.72 |
| 2013 | 2246.00 | 44.40 |
| 2012 | 2246.00 | 42.19 |
| 2011 | 2246.00 | 42.17 |
| 2010 | 2246.00 | 44.22 |
| 2009 | 2246.00 | 45.00 |
| 2008 | 2247.00 | 44.00 |
| 2007 | 2246.00 | 43.61 |
| 2006 | 2246.00 | 38.98 |
| 2005 | 2246.00 | 38.98 |
| 2004 | 2246.00 | 38.91 |
| 2003 | 2246.00 | 37.40 |
| 2002 | 2246.00 | 36.42 |
| 2001 | 2246.00 | 35.08 |
| 2000 | 2246.00 | 34.82 |
| 1999 | 2246.00 | |
| 1998 | 2246.00 | |
| 1997 | 2230.00 | |
| 1996 | 2239.00 | |
| 1995 | 2239.00 | |
| 1994 | 2239.00 | |
| 1993 | 2239.00 | |
| 1984 | 2200.00 |
