Year	current international $
1990	5979.429405564871
1991	6289.479982011315
1992	6492.847761384662
1993	6671.126965345766
1994	7010.7125553754195
1995	7141.075987336231
1996	7427.940802795818
1997	7824.75439507839
1998	7985.4033508342145
1999	7978.366385266783
2000	8335.621906180526
2001	8424.477355269044
2002	8498.380958195075
2003	8770.356553687843
2004	9290.706295161144
2005	9838.024683181342
2006	10724.485440475559
2007	11486.734169981719
2008	12113.139402388812
2009	11915.056494656115
2010	12673.606304857478
2011	13525.88262378901
2012	13786.754983834078
2013	14272.577475844902
2014	14563.40897554995
2015	14349.240627623385
2016	14533.485372575846
2017	15108.85294867076
2018	15659.760247569966
2019	16009.735256606777
2020	15438.681415994977
2021	17251.343584474165
2022	19296.293313864284
2023	20331.48598641611