Year	per Person
1970	0.2493
1971	0.19898
1972	0.21521
1973	0.24128
1974	0.2904
1975	0.32832
1976	0.33676
1977	0.45009
1978	0.58861
1979	0.68336
1980	0.89851
1981	0.98431
1982	0.9789
1983	0.89775
1984	1.31198
1985	1.28288
1986	1.6353
1987	1.66051
1988	1.72812
1989	1.70221
1990	1.84776
1991	1.87653
1992	1.98086
1993	2.01772
1994	2.10217
1995	2.0622
1996	2.08916
1997	2.09202
1998	2.11936
1999	2.04884
2000	2.15894
2001	2.26821
2002	2.32947
2003	2.39639
2004	2.54476
2005	2.68204
2006	2.68997
2007	2.65232
2008	2.79082
2009	2.6482
2010	2.87665
2011	2.9405
2012	3.0735
2013	3.00646
2014	2.99389
2015	2.97888
2016	3.04994