Year	per Person
1980	2.5586
1981	2.39981
1982	2.3375
1983	3.10991
1984	2.97713
1985	2.87935
1986	3.71019
1987	3.64178
1988	3.50241
1989	3.37107
1990	2.0735
1991	1.85284
1992	1.87002
1993	1.85901
1994	2.07377
1995	2.23503
1996	2.27492
1997	2.12378
1998	2.1164
1999	2.50533
2000	2.44859
2001	2.35972
2002	2.22696
2003	2.00743
2004	1.86144
2005	1.73011
2006	1.51037
2007	1.37825
2008	1.17599
2009	0.91786
2010	0.81493
2011	0.74261
2012	0.66213
2013	0.58143
2014	0.475
2015	0.42932
2016	0.38855