Year	per Person
1980	9.06976
1981	8.75406
1982	9.66609
1983	9.41759
1984	9.09352
1985	10.48022
1986	11.61367
1987	9.90243
1988	8.67816
1989	11.69659
1990	13.16067
1991	14.0458
1992	13.64972
1993	15.06174
1994	15.16162
1995	14.74331
1996	14.33385
1997	14.11304
1998	13.72882
1999	13.54263
2000	13.21687
2001	12.9362
2002	13.16721
2003	14.98685
2004	14.65746
2005	14.2665
2006	13.79859
2007	13.01903
2008	11.95546
2009	12.31699
2010	12.20334
2011	12.29391
2012	12.56078
2013	12.94857
2014	13.35723
2015	13.69096
2016	13.91718