Year	billion cubic meters
1962	8715.605000000001
1963	8715.605000000001
1964	8715.605000000001
1965	8715.605000000001
1966	8715.605000000001
1967	8715.605000000001
1968	8715.605000000001
1969	8715.605000000001
1970	8715.605000000001
1971	8715.605000000001
1972	8715.605000000001
1973	8715.605000000001
1974	8715.605000000001
1975	8715.605000000001
1976	8715.605000000001
1977	8715.605000000001
1978	8715.605000000001
1979	8715.605000000001
1980	8715.605000000001
1981	8715.605000000001
1982	8715.605000000001
1983	8715.605000000001
1984	8715.605000000001
1985	8715.605000000001
1986	8715.605000000001
1987	8715.605000000001
1988	8715.605000000001
1989	8715.605000000001
1990	8715.605000000001
1991	8715.605000000001
1992	8715.605000000001
1993	8715.605000000001
1994	8715.605000000001
1995	8715.605000000001
1996	8715.605000000001
1997	8715.605000000001
1998	8715.605000000001
1999	8715.605000000001
2000	8715.605000000001
2001	8715.605000000001
2002	8715.605000000001
2003	8715.605000000001
2004	8715.605000000001
2005	8715.605000000001
2006	8715.605000000001
2007	8715.605000000001
2008	8715.605000000001
2009	8715.605000000001
2010	8715.605000000001
2011	8715.605000000001
2012	8715.605000000001
2013	8715.605000000001
2014	8715.605000000001
2015	8715.605000000001
2016	8715.605000000001
2017	8715.605000000001
2018	8715.605000000001
2019	8715.605000000001
2020	8715.605000000001