Year	cubic meters
1961	356154.82301983313
1962	343403.0198653444
1963	330736.43980596797
1964	319058.42314237094
1965	308344.93520084466
1966	298065.28532976855
1967	288108.95756940806
1968	278506.0821227227
1969	269301.28557361173
1970	260582.54676009036
1971	252534.27068612797
1972	249038.43493179115
1973	249791.20987255604
1974	250938.48458502634
1975	252462.78724017373
1976	254347.67528793955
1977	256602.99110961353
1978	259240.3472249499
1979	262347.56016769045
1980	263921.17554223805
1981	263396.6460827065
1982	262399.01613621425
1983	260932.13392407665
1984	258744.38407075484
1985	255700.96933912922
1986	252311.58186618824
1987	249453.84725865338
1988	246183.53355431827
1989	242433.14722303848
1990	239851.14692457527
1991	237991.63904120622
1992	235983.4191852136
1993	234388.87244746965
1994	232095.80164483248
1995	227853.34530138783
1996	223056.36792134
1997	218597.57511255567
1998	214402.1968645303
1999	210433.23739845
2000	206681.44752170157
2001	203121.08889317472
2002	199731.27065402913
2003	196514.35150264006
2004	193900.174706016
2005	191778.6990043005
2006	189646.8163280162
2007	187519.17809775998
2008	185414.78598638793
2009	183337.74701983566
2010	181292.11837093465
2011	179300.40242979213
2012	177384.06876051537
2013	175548.41146419788
2014	173781.16212202597
2015	172031.79981754205
2016	170263.11670934712
2017	168493.71722669553
2018	166746.67138273414
2019	164917.26650463685
2020	163079.73610733612