Year	per Person
1991	23.24635
1992	22.89175
1993	22.56014
1994	20.53888
1995	20.29661
1996	20.08959
1997	19.91186
1998	19.75178
1999	19.94993
2000	19.7814
2001	19.60153
2002	115.3556
2003	114.19196
2004	113.00903
2005	111.82153
2006	110.63481
2007	109.44139
2008	108.23056
2009	106.9875
2010	105.70767
2011	104.39104
2012	103.05543
2013	101.73364
2014	100.46538
2015	99.27752
2016	98.17615