Year	current US$
2000	9009430.99175324
2001	10400790.6728997
2002	10463446.1145054
2003	10760855.2135058
2004	8972317.21723635
2005	8699626.22895469
2006	7855917.6530925
2007	7987333.33449985
2008	8053541.93177747
2009	8249109.20380148
2010	9373376.2468688
2011	11215272.6728433
2012	12599589.2344437
2013	15145238.3885974
2014	15546076.1426765
2015	17211608.3511002
2016	17628028.7758281
2017	17500997.8524686
2018	17155365.7286504
2019	18392183.3918185
2020	16126103.2396264
2021	27900033.1032853