Year	Cubic Meters
1990	7972000
1991	8327000
1992	8357000
1993	8818000
1994	9465000
1995	9736000
1996	9121000
1997	9146000
1998	9550000
1999	11138000
2000	9329000
2001	8099000
2002	7511000
2003	8219000
2004	8697400
2005	8690900
2006	8618300
2007	8125000
2008	8667000
2009	8080300
2010	7843800
2011	7744500