Year	current international $
1990	20472.455667702612
1991	21178.872441378215
1992	20628.573983604318
1993	20092.095505903606
1994	21619.351084820628
1995	22772.564204221264
1996	23502.07272147533
1997	24215.21634676457
1998	26340.052170708346
1999	27080.86112791451
2000	29608.25507452965
2001	30577.52817224317
2002	30610.430632673007
2003	32508.021915940022
2004	35596.206079203635
2005	38527.08503313992
2006	42040.53426967965
2007	44366.43151593122
2008	48203.12306472254
2009	48924.764086290175
2010	49863.655408862505
2011	50653.0585928307
2012	52389.32535230464
2013	52893.65035561572
2014	56555.069066519456
2015	55815.65028855038
2016	58908.59077397679
2017	60010.09829072976
2018	61806.82713081742
2019	64264.05646073933
2020	64857.62870537983
2021	68086.46012381752