Year	Cubic Meters
1990	4766300
1991	4897700
1992	5064900
1993	5339300
1994	5390500
1995	5456000
1996	5486000
1997	5628200
1998	5651300
1999	5744900
2000	5805200
2001	5784200
2002	5808400
2003	5887000
2004	4678000
2005	4590000
2006	4590000
2007	4590000
2008	4590000
2009	4590000
2010	4590000
2011	4590000