Year	per Person
1980	3.95848
1981	3.86947
1982	3.72065
1983	3.42573
1984	3.23228
1985	3.10528
1986	3.21126
1987	2.70075
1988	3.46621
1989	2.91752
1990	2.65234
1991	2.55178
1992	4.6824
1993	5.24656
1994	5.23035
1995	5.21607
1996	5.13285
1997	4.56458
1998	4.49609
1999	4.2492
2000	2.87348
2001	2.81052
2002	2.59787
2003	2.43404
2004	2.50678
2005	2.34951
2006	2.52534
2007	2.53442
2008	2.48824
2009	2.65822
2010	2.9998
2011	3.00002
2012	3.11323
2013	2.96502
2014	2.53775
2015	2.30446
2016	2.28434