Year	Total
1980	200340000
1981	187488000
1982	182196000
1983	241920000
1984	231336000
1985	223776000
1986	288792000
1987	284256000
1988	274428000
1989	265356000
1990	164052000
1991	147420000
1992	149688000
1993	149688000
1994	167832000
1995	181575000
1996	185238000
1997	173088000
1998	172485000
1999	204138000
2000	199530000
2001	192402000
2002	181746000
2003	163980000
2004	152109000
2005	141300000
2006	123156000
2007	112113000
2008	95409000
2009	74314800
2010	65923200
2011	60102000
2012	53676000
2013	47250000
2014	38707200
2015	35078400
2016	31827600