Year	Total
1985	28173000
1986	31439000
1987	32416000
1988	32498000
1989	33475000
1990	33231000
1991	34112000
1992	34862000
1993	36680000
1994	38428000
1995	39550000
1996	39891000
1997	41737000
1998	44625000
1999	45270000
2000	45949000
2001	46763000
2002	46729000
2003	46822000
2004	48759000
2005	48613000
2006	50978000
2007	52371000
2008	51991000
2009	50016000
2010	48960000
2011	51312000
2012	51231000
2013	51196000
2014	51562000
2015	51974000
2016	56489000