Year	Cubic Meters
1990	4470
1991	4466
1992	4466
1993	4456
1994	4460
1995	4456
1996	4481
1997	3926
1998	4301
1999	2611
2000	3710
2001	3702
2002	3695
2003	3688
2004	3682
2005	3375
2006	4167
2007	4158
2008	4150
2009	4142
2010	4134
2011	4126