Year	Cubic Meters
1990	2076000
1991	2556000
1992	2556000
1993	595000
1994	409000
1995	409000
1996	409000
1997	409000
1998	27700
1999	230000
2000	447000
2001	264600
2002	304800
2003	296200
2004	296200
2005	296200
2006	296200
2007	430000
2008	430000
2009	430000
2010	430000
2011	430000