Year	Cubic Meters
1990	12966900
1991	12966400
1992	13011300
1993	13102300
1994	13033900
1995	13101400
1996	13119500
1997	13191000
1998	13853500
1999	13938500
2000	14022700
2001	14004200
2002	13987900
2003	13973800
2004	13961800
2005	13951800
2006	13914300
2007	13879000
2008	13845800
2009	13814700
2010	13785700
2011	13723550