| Wetland Features |
Area in km2 (1989) |
Area in km2 (2001) |
Area in km2 (2005) |
Area in km2 (2009) |
Area in km2 (2014) |
| Surface Water |
8.296 |
7.414 |
4.983 |
7.072 |
3.708 |
| Swamp/Seasonal Water |
3.236 |
3.708 |
3.872 |
5.576 |
6.803 |
| Aquatic Weeds |
3.584 |
3.994 |
6.261 |
2.468 |
4.605 |
| Total |
15.116 |
15.116 |
15.116 |
15.116 |
15.116 |