| Year | Value (ha) |
|---|---|
|
2018 |
0 |
|
2017 |
67137 |
|
2016 |
67455 |
|
2015 |
61404 |
|
2014 |
21700 |
|
2013 |
6900 |
|
2012 |
4800 |
|
2011 |
4000 |
|
2010 |
2000 |
|
2009 |
1300 |