Year	per Person
1970	0.00799
1971	0.00783
1972	0.20434
1973	0.30843
1974	0.31598
1975	0.30484
1976	0.30743
1977	0.31737
1978	0.30596
1979	0.32729
1980	0.3927
1981	0.40987
1982	0.4161
1983	0.39111
1984	0.36842
1985	0.35772
1986	0.35706
1987	0.36614
1988	0.37951
1989	0.39253
1990	0.39336
1991	0.38341
1992	0.37023
1993	0.36218
1994	0.3829
1995	0.37512
1996	0.37141
1997	0.30696
1998	0.31438
1999	0.24829
2000	0.34919
2001	0.49913
2002	0.6279
2003	0.70875
2004	0.97967
2005	1.18778
2006	1.25031
2007	1.31675
2008	1.33992
2009	1.13549
2010	1.28964
2011	1.3912
2012	1.56119
2013	1.75544
2014	1.79045
2015	1.70103
2016	1.63034