Year	Cubic Meters
1990	10425200
1991	10865400
1992	8207000
1993	8319000
1994	8555000
1995	12602300
1996	12677700
1997	8651000
1998	8650000
1999	12226900
2000	12095400
2001	12140800
2002	12187700
2003	12236300
2004	12286500
2005	12338300
2006	12389400
2007	12442200
2008	12496500
2009	12552400
2010	12610000
2011	12610000