Year	per Person
1980	17.79372
1981	22.14812
1982	24.22479
1983	23.65592
1984	26.03803
1985	30.60464
1986	30.00876
1987	27.43665
1988	27.06758
1989	28.58135
1990	26.91958
1991	27.23664
1992	36.51639
1993	34.70352
1994	35.48725
1995	34.60646
1996	32.18713
1997	31.47304
1998	28.68207
1999	30.27661
2000	26.64981
2001	25.65244
2002	25.59035
2003	26.74
2004	27.95825
2005	27.91854
2006	27.94932
2007	27.97072
2008	27.77198
2009	17.64949
2010	18.14152
2011	17.81028
2012	17.15144
2013	17.21832
2014	16.24453
2015	15.98273
2016	15.74489