Year	billion cubic meters
1992	4986.109
1993	4986.109
1994	4986.109
1995	4986.109
1996	4985.209000000001
1997	4986.109
1998	4986.109
1999	4986.109
2000	4986.109
2001	4986.109
2002	4986.109
2003	4986.109
2004	4986.109
2005	4986.109
2006	4994.5160000000005
2007	4994.5160000000005
2008	4994.5160000000005
2009	4994.5160000000005
2010	4994.5160000000005
2011	4994.5160000000005
2012	4994.5160000000005
2013	4994.5160000000005
2014	4994.5160000000005
2015	4994.5160000000005
2016	4994.5160000000005
2017	4994.5160000000005
2018	4994.5160000000005
2019	4994.5160000000005
2020	4994.5160000000005