Year	current US$
1990	50581089.4676299
1991	45934274.367948
1992	25884535.4413659
1993	14541375.5507092
1994	15986252.0849372
1995	21178121.4711653
1996	18068708.586882
1997	14243418.330153
1998	13043639.5612767
1999	11784287.9741915
2000	12290559.3558531
2001	12554808.0436634
2002	12895822.4502668
2003	13001850.5774947
2004	14055084.2955744
2005	16669222.4866787
2006	20876930.5267613
2007	24379347.9959807
2008	32132678.7246767
2009	29208423.4438712
2010	44166990.4781976
2011	59567613.7595669
2012	64103273.5867878
2013	60706559.6981786
2014	57494675.1344015
2015	58007775.9684685
2016	60749853.8690089
2017	63076322.2282417
2018	70916629.9662175
2019	77557789.438832
2020	76313712.5725566
2021	86487582.7838158