Year	billion cubic meters
1992	7036.7645999999995
1993	7062.5145999999995
1994	7062.5145999999995
1995	7062.5145999999995
1996	7061.6146
1997	7062.5145999999995
1998	7062.5145999999995
1999	7062.5145999999995
2000	7062.5145999999995
2001	7062.5145999999995
2002	7062.5145999999995
2003	7062.5145999999995
2004	7062.5145999999995
2005	7062.5145999999995
2006	7070.9216
2007	7070.9216
2008	7070.9216
2009	7070.9216
2010	7070.9216
2011	7070.9216
2012	7070.9216
2013	7070.9216
2014	7070.9216
2015	7070.9216
2016	7070.9216
2017	7070.9216
2018	7070.9216
2019	7070.9216
2020	7070.9216