Year	Total
1980	2700000
1981	1800000
1982	900000
1983	900000
1984	900000
1985	900000
1986	900000
1987	900000
1988	900000
1989	900000
1990	900000
1991	900000
1992	900000
1993	900000
1994	900000
1995	900000
1996	900000
1997	900000
1998	900000
1999	1800000
2000	40500000
2001	40500000
2002	40500000
2003	42300000
2004	42300000
2005	40500000
2006	40500000
2007	39600000
2008	39600000
2009	81000000
2010	181800000
2011	181800000
2012	181800000
2013	175491000
2014	171036000
2015	163107000
2016	140454000