Year	per Person
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0.04676
1988	0.10672
1989	0.22373
1990	0.40144
1991	0.46987
1992	0.67116
1993	1.12074
1994	1.17847
1995	1.38642
1996	1.58952
1997	2.19499
1998	3.30338
1999	3.09253
2000	3.31292
2001	3.6983
2002	4.68
2003	4.87922
2004	5.03615
2005	5.04643
2006	5.2095
2007	5.41537
2008	7.44076
2009	7.00962
2010	6.78358
2011	6.71045
2012	6.63513
2013	6.55929
2014	6.48507
2015	6.41391
2016	6.34626