Year	cubic meters
1992	3281.9300851792086
1993	3260.5179171727136
1994	3246.7181902955695
1995	3235.4971162338775
1996	3215.222057144336
1997	3205.3344432311414
1998	3193.3415516780888
1999	3182.5915624846853
2000	3169.541766865464
2001	3156.0065762326435
2002	3142.1320150089364
2003	3127.202142912672
2004	3110.7617393676737
2005	3093.7342517667366
2006	3010.3245536933186
2007	2997.016393967273
2008	2975.2782530761656
2009	2951.0065709096298
2010	2922.7920193492546
2011	2895.1991022062493
2012	2872.3109344886443
2013	2848.042013092927
2014	2823.5635744130495
2015	2797.840880381196
2016	2772.7571409228763
2017	2749.522173491301
2018	2726.4016449378396
2019	2702.4365563212045
2020	2683.616075908401