Year	per Person
1980	4.93807
1981	6.76183
1982	5.80109
1983	5.08981
1984	4.78803
1985	4.1105
1986	3.65484
1987	3.20396
1988	5.56431
1989	5.4065
1990	5.14437
1991	5.03042
1992	4.81481
1993	4.70353
1994	4.79833
1995	4.58535
1996	4.31684
1997	4.16665
1998	5.07381
1999	4.75241
2000	4.76663
2001	5.08684
2002	4.88598
2003	4.7068
2004	5.48787
2005	5.32698
2006	5.35499
2007	5.40678
2008	5.34085
2009	5.27464
2010	5.75809
2011	5.52842
2012	6.43445
2013	7.21589
2014	6.20846
2015	5.16141
2016	5.09689