Year	current international $
1990	19912.516605341552
1991	21227.675054188567
1992	21825.798819843603
1993	22168.560288184413
1994	22823.441710753683
1995	23859.066053900453
1996	25000.53392359401
1997	25620.068102379355
1998	25509.89959548598
1999	25735.97109115167
2000	27287.27019127178
2001	27942.346651132983
2002	28623.588447936738
2003	29392.248991618573
2004	30830.658446643396
2005	32169.867493646037
2006	33634.631706678716
2007	35015.986574512724
2008	35273.79115215602
2009	33547.2834245767
2010	35335.37351038142
2011	36214.4397740241
2012	37605.97426145393
2013	39402.025098802456
2014	39555.41200891975
2015	40898.80697396
2016	40596.96866289942
2017	41444.21574439138
2018	42141.93529877594
2019	42678.151144835465
2020	42438.44646009004
2021	44549.33834114336
2022	47118.38827482575
2023	50206.60915800085