Year	Cubic Meters
1990	900
1991	1000
1992	900
1993	1000
1994	900
1995	1000
1996	900
1997	1000
1998	1000
1999	1000
2000	1000
2001	1100
2002	1100
2003	1200
2004	1200
2005	1200
2006	1300
2007	1300
2008	1300
2009	1400
2010	1400
2011	1400