Year	per Person
1997	11.94493
1998	12.91152
1999	12.91568
2000	12.97645
2001	13.09366
2002	13.20918
2003	13.25981
2004	13.42281
2005	13.39362
2006	13.44815
2007	13.51484
2008	13.30969
2009	13.10081
2010	12.87329
2011	12.9146
2012	12.75558
2013	12.5525
2014	12.35681
2015	12.16534
2016	11.96749