Year	Total
1985	13230000
1986	13050000
1987	13910000
1988	13740000
1989	13160000
1990	12500000
1991	11774000
1992	11196000
1993	10251000
1994	9562800
1995	9161700
1996	9100400
1997	9027000
1998	11449000
1999	13851000
2000	14069000
2001	14979000
2002	15334000
2003	15378000
2004	15459000
2005	22214000
2006	32268000
2007	42597000
2008	44514000
2009	50416000
2010	50838000
2011	45626000
2012	43375000
2013	43457000
2014	42076000
2015	41628000
2016	41031000