Year	Total
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	15300000
1987	101700000
1988	140400000
1989	178200000
1990	220500000
1991	291483000
1992	291483000
1993	291483000
1994	291483000
1995	291483000
1996	291483000
1997	291483000
1998	291483000
1999	291483000
2000	291483000
2001	291483000
2002	291483000
2003	291483000
2004	291483000
2005	291483000
2006	291483000
2007	291483000
2008	291483000
2009	290610000
2010	283590000
2011	273015000
2012	264483000
2013	252855000
2014	241974000
2015	239643000
2016	239643000