Year	billion cubic meters
1961	224.856
1962	224.856
1963	224.856
1964	224.856
1965	224.856
1966	224.856
1967	224.856
1968	224.856
1969	224.856
1970	224.856
1971	224.856
1972	224.856
1973	224.856
1974	224.856
1975	224.856
1976	224.856
1977	224.856
1978	224.856
1979	224.856
1980	224.856
1981	224.856
1982	224.856
1983	224.856
1984	224.856
1985	224.856
1986	224.856
1987	224.856
1988	224.856
1989	224.856
1990	224.856
1991	224.856
1992	224.856
1993	224.856
1994	224.856
1995	224.856
1996	224.856
1997	224.856
1998	224.856
1999	224.856
2000	224.856
2001	224.856
2002	224.856
2003	224.856
2004	224.856
2005	224.856
2006	224.856
2007	224.856
2008	224.856
2009	224.856
2010	224.856
2011	224.856
2012	224.856
2013	224.856
2014	224.856
2015	224.856
2016	224.856
2017	224.856
2018	224.856
2019	224.856
2020	224.856