Year	Cubic Meters
1990	8980
1991	9040
1992	9070
1993	8730
1994	8850
1995	8860
1996	8970
1997	9070
1998	9080
1999	9120
2000	9420
2001	9470
2002	9520
2003	9570
2004	9620
2005	9670
2006	9700
2007	9740
2008	9780
2009	9810
2010	9850
2011	9860