Year	Cubic Meters
1990	4298930
1991	4439680
1992	4495090
1993	4638960
1994	4752370
1995	4808850
1996	4906200
1997	4974480
1998	5015110
1999	5083720
2000	5143490
2001	5200430
2002	5258480
2003	5317670
2004	5378030
2005	5439580
2006	5497180
2007	5555900
2008	5615800
2009	5676920
2010	5739250
2011	5797780