Year	US Dollars adjusted for inflation)
2007	2968.85168
2008	4012.77521
2009	4361.14632
2010	4912.59956
2011	5469.15568
2012	5890.77097
2013	7510.28825
2014	9360.62905
2015	9143.66873
2016	9650.56845
2017	9609.66179