Year	Cubic Meters
1990	520730
1991	549280
1992	594610
1993	621320
1994	602700
1995	607700
1996	607700
1997	612700
1998	612700
1999	617700
2000	715380
2001	723940
2002	732680
2003	741590
2004	750700
2005	760000
2006	769020
2007	778200
2008	787600
2009	797200
2010	806970
2011	816030