Year cubic meters 1992 8302.675800389641 1993 9003.340366083428 1994 9435.642274866905 1995 9465.336471381223 1996 9084.509222824074 1997 8770.30882357301 1998 8626.850793633823 1999 8548.008747382022 2000 8494.143826193069 2001 8462.592480640926 2002 8455.581994135875 2003 8485.196439468164 2004 8568.959607614064 2005 8670.597174557683 2006 8747.96640583763 2007 8857.559465412603 2008 9002.401993005007 2009 9154.793372445361 2010 9314.925291675238 2011 9484.011026031072 2012 9661.509688453054 2013 9813.246998874103 2014 9941.00364372787 2015 10072.853687685922 2016 10198.259918310501 2017 10319.686444321513 2018 10440.78033509905 2019 10563.240933242994 2020 10697.904144970766