Year	per Person
1972	0.01958
1973	0.02914
1974	0.01933
1975	0.02888
1976	0.03847
1977	0.09561
1978	0.0763
1979	0.07616
1980	0.05722
1981	0.14262
1982	0.3234
1983	0.40931
1984	0.44892
1985	0.57172
1986	0.70505
1987	0.88563
1988	0.91579
1989	1.06384
1990	1.14693
1991	1.34239
1992	1.48343
1993	1.57721
1994	1.72996
1995	1.7322
1996	1.93421
1997	2.12365
1998	2.18815
1999	2.738
2000	3.32098
2001	3.16514
2002	3.36491
2003	3.32896
2004	3.52727
2005	3.41535
2006	3.09296
2007	2.77315
2008	2.55284
2009	2.33477
2010	2.18854
2011	1.95974
2012	1.77876
2013	1.54012
2014	1.43547
2015	1.35177
2016	1.21223