Jahr,"<10,0 ha","10,0–29,9 ha","30,0+ ha" 	
1996,386,717,165
1999,356,669,175
2002,290,623,196
2005,265,590,205
2008,237,551,225
2011,221,527,233
2014,214,484,247
2017,205,433,264
2020,222,407,269
2023,222,367,285