Year	per Person
1970	0.1567
1971	0.16063
1972	0.19802
1973	0.25569
1974	0.28756
1975	0.3443
1976	0.42152
1977	0.39203
1978	0.59053
1979	0.93967
1980	0.68519
1981	0.77022
1982	0.97411
1983	1.35202
1984	1.33435
1985	1.42272
1986	1.41287
1987	1.54947
1988	1.57546
1989	1.65391
1990	1.71412
1991	1.8037
1992	1.8348
1993	1.81791
1994	1.63742
1995	1.82924
1996	1.90763
1997	2.15369
1998	2.27214
1999	2.51833
2000	2.5337
2001	2.35353
2002	2.39025
2003	2.49056
2004	2.41092
2005	2.38515
2006	2.25058
2007	2.22577
2008	2.21559
2009	2.01871
2010	2.00376
2011	2.02148
2012	1.95257
2013	1.93505
2014	1.91664
2015	1.90963
2016	2.02359