Year	per Person
1985	0.68587
1986	0.63304
1987	0.56607
1988	0.51401
1989	0.48783
1990	0.44472
1991	0.38616
1992	0.33265
1993	0.30473
1994	0.28982
1995	0.29121
1996	0.29629
1997	0.30303
1998	0.29418
1999	0.29929
2000	0.29824
2001	0.30794
2002	0.31914
2003	0.33209
2004	0.35018
2005	0.35607
2006	0.36168
2007	0.36347
2008	0.37033
2009	0.37718
2010	0.3639
2011	0.36993
2012	0.36819
2013	0.38452
2014	0.36474
2015	0.36112
2016	0.36005