Year Cubic Meters 1990 1625000 1991 1670000 1992 1960000 1993 1821000 1994 2018000 1995 2204000 1996 2291000 1997 2180000 1998 2266000 1999 2584000 2000 2673100 2001 2455000 2002 2646100 2003 2683300 2004 2562000 2005 2648000 2006 2671000 2007 2710000 2008 2232000 2009 2428800 2010 2618000 2011 2627000