Year	current international $
1990	18060.619152566713
1991	18712.966223742
1992	19329.877737097624
1993	19836.782478221605
1994	20711.376264979754
1995	21580.37184797315
1996	22492.44692881085
1997	23484.901594750325
1998	24283.932329447718
1999	25338.06652433511
2000	26937.021920006853
2001	27909.498732264903
2002	28866.56860797337
2003	29811.67118870347
2004	31430.344564661915
2005	32959.28386471265
2006	35087.820424265
2007	36822.6599394372
2008	37761.3254551696
2009	36690.72780916159
2010	38030.97299498245
2011	39470.81300838902
2012	40524.065183785824
2013	42032.67159641359
2014	43151.698925141136
2015	44264.28495638566
2016	45766.62843001221
2017	47607.56379323065
2018	49620.020227006855
2019	52005.4480146449
2020	51024.60995263883
2021	56189.78629851833
2022	61380.1048438053
2023	64563.27224298154