Year	Cubic Meters
1990	6458580
1991	6529530
1992	6612580
1993	6798640
1994	7090170
1995	7371920
1996	7711130
1997	7893030
1998	8078210
1999	5940000
2000	6187000
2001	8718620
2002	8862240
2003	9086430
2004	9235250
2005	9424730
2006	9563680
2007	9705000
2008	9848300
2009	9994140
2010	10728550
2011	10866110