| 序号 | 时间 (年) |
数据 (平方公里) |
|---|---|---|
| 1 | 2022 | |
| 2 | 2021 | |
| 3 | 2020 | |
| 4 | 2019 | |
| 5 | 2018 | |
| 6 | 2017 | |
| 7 | 2016 | 65.44 |
| 8 | 2015 | 65.20 |
| 9 | 2014 | 63.60 |
| 10 | 2013 | 55.10 |
| 11 | 2012 | 34.72 |
| 12 | 2011 | 33.70 |
| 13 | 2010 | 29.06 |
| 14 | 2009 | 26.66 |
| 15 | 2008 | 26.16 |
| 16 | 2007 | 24.96 |
| 17 | 2006 | 23.95 |
| 18 | 2005 | 23.46 |
| 19 | 2004 | 23.06 |
| 20 | 2003 | 22.63 |
| 21 | 2002 | 22.21 |
| 22 | 2001 | 21.99 |
| 23 | 2000 | 21.75 |
| 24 | 1999 | 21.56 |
