Year	Cubic Meters
1992	1671000
1993	1065000
1994	1944000
1995	1866000
1996	1991000
1997	2208000
1998	2133000
1999	2068000
2000	2253000
2001	2257000
2002	2283000
2003	2591000
2004	2551000
2005	2732800
2006	3179100
2007	2881700
2008	2990100
2009	2930200
2010	2945400
2011	3387900