Year	Total
1980	9265652000
1981	9238372000
1982	9159260000
1983	9138800000
1984	12645644000
1985	12612089600
1986	12892800800
1987	12893210000
1988	12893210000
1989	13247850000
1990	13234210000
1991	13162600000
1992	13162600000
1993	13162600000
1994	13162600000
1995	13162600000
1996	13162600000
1997	13162600000
1998	13162600000
1999	13162600000
2000	13162600000
2001	13162600000
2002	13162600000
2003	13503600000
2004	13844600000
2005	13844600000
2006	13844600000
2007	13844600000
2008	13844600000
2009	13844600000
2010	13844600000
2011	13844600000
2012	13844600000
2013	13844600000
2014	13844600000
2015	13844600000
2016	13844600000