Year	Cubic Meters
1990	51085300
1991	52892800
1992	56268900
1993	58603900
1994	60133900
1995	62469900
1996	60730900
1997	59354400
1998	55557400
1999	48486900
2000	43957200
2001	41970300
2002	41272100
2003	43198600
2004	47120900
2005	50228700
2006	61116800
2007	64920500
2008	73573200
2009	64762700
2010	75132100
2011	74496400