Year	cubic meters
1992	12137.56188109115
1993	12101.671886035032
1994	12076.793152055305
1995	12059.656557777636
1996	12039.521221581572
1997	12026.107104921331
1998	12013.978887448207
1999	12010.298119684301
2000	12018.430600344996
2001	12029.38450508565
2002	12039.138934891766
2003	12036.538097443497
2004	12027.4820685874
2005	12016.02539147131
2006	11814.870052870076
2007	11805.536641699471
2008	11774.183375759412
2009	11729.089807145865
2010	11677.275290470001
2011	11619.468345805997
2012	11566.115119310236
2013	11507.982164772518
2014	11449.310652591881
2015	11389.350512330395
2016	11331.35314457205
2017	11279.428097489492
2018	11231.436366810027
2019	11181.884048106753
2020	11150.848600527726