Year	Cubic Meters
1992	3160000
1993	4508000
1994	3992000
1995	5960000
1996	5540000
1997	5149000
1998	4879000
1999	4924000
2000	5500000
2001	5700000
2002	6115000
2003	6275000
2004	6120000
2005	6045000
2006	5870000
2007	6195000
2008	5594400
2009	5459500
2010	7096900
2011	8052600