Year	Cubic Meters
1990	11125400
1991	10835400
1992	10915100
1993	11208000
1994	11922500
1995	11931300
1996	11692000
1997	11629300
1998	11762400
1999	11707500
2000	11945000
2001	11167100
2002	10665000
2003	10171400
2004	10333100
2005	10047000
2006	10148400
2007	10254400
2008	10303900
2009	10357700
2010	10415800
2011	10415800