Year	Total
1980	2773012000
1981	3082640000
1982	3026170400
1983	2971337600
1984	2922370000
1985	2905320000
1986	3109920000
1987	3109920000
1988	3109920000
1989	3109920000
1990	3109920000
1991	3109920000
1992	3109920000
1993	3109920000
1994	3109920000
1995	4023800000
1996	4023800000
1997	4023800000
1998	4023800000
1999	4023800000
2000	4910400000
2001	4910400000
2002	4910400000
2003	5336786400
2004	5336786400
2005	5655689600
2006	5655689600
2007	5955633200
2008	6038564400
2009	6331960800
2010	6424030800
2011	6549109600
2012	6611580800
2013	6596713200
2014	6596713200
2015	6596713200
2016	6596713200