Year	current US$
1990	85755254.3271031
1991	74662909.3950631
1992	71531469.1524979
1993	79669466.0411298
1994	96350888.8128792
1995	90148903.7650146
1996	62819882.1968032
1997	60666251.9649936
1998	62490265.4527549
1999	65158873.9168049
2000	64279948.8297223
2001	62866504.4039523
2002	60804844.6872259
2003	61882552.7483099
2004	60889957.4905939
2005	63335047.7242992
2006	62878462.7292264
2007	67346855.5995046
2008	69747264.3905839
2009	75733249.6969607
2010	78380980.6769311
2011	86717650.176261
2012	96947131.5656815
2013	104866308.465783
2014	113225309.440378
2015	124494873.626598
2016	126660180.285322
2017	130665961.049752
2018	130846452.064484
2019	133797597.867189
2020	150906400.609576