Year	current international $
1990	4759.10267116314
1991	5153.45289008089
1992	5368.329363315541
1993	5449.2272438443815
1994	5514.921043360107
1995	5647.828686988105
1996	5978.433117524008
1997	6182.271256601741
1998	6524.226875617531
1999	6717.323311102742
2000	7201.428452583567
2001	7448.633714986507
2002	7676.393626256108
2003	7838.539754292199
2004	8514.162171946933
2005	8976.310039469901
2006	9610.452128956242
2007	10342.377818519772
2008	10704.419869368827
2009	10771.779158563657
2010	11196.322777923024
2011	11170.438259991031
2012	11411.184615846087
2013	11269.315585036784
2014	10983.269499220238
2015	10366.837655415062
2016	10482.451401527735
2017	10912.587412187848
2018	11370.683608787704
2019	11300.122838220794
2020	11474.881539490567
2021	12153.297704792665
2022	13426.718117439523
2023	14086.595106359526