Year cubic meters 2006 1134.3077289032863 2007 1138.9162129132533 2008 1143.7749771367448 2009 1148.3706646002279 2010 1152.9964742198931 2011 1162.135049575628 2012 1167.7885928987841 2013 1173.4847989958866 2014 1179.0071377122972 2015 1184.854996551983 2016 1191.0762926372586 2017 1197.4319947789857 2018 1203.992092348356 2019 1210.470200072424 2020 1218.560148053536