Year	Total
1985	4861200
1986	3538200
1987	3533700
1988	3530400
1989	3525900
1990	4606300
1991	5155600
1992	5008000
1993	2852000
1994	2860000
1995	2632000
1996	3057000
1997	2987000
1998	3831000
1999	4187000
2000	4001000
2001	3804000
2002	4346000
2003	4958000
2004	4942000
2005	4977000
2006	4849000
2007	5091000
2008	5224000
2009	5022000
2010	5547000
2011	5767000
2012	6010000
2013	6179000
2014	6463000
2015	6618100
2016	6689400