Year	current international $
1990	2961.4086039661447
1991	3140.6625880344627
1992	3274.9979502539654
1993	3355.3339816564585
1994	3459.504720032036
1995	3584.272005141524
1996	3777.7117361283267
1997	3932.536072583479
1998	3896.184571217121
1999	3974.08140277766
2000	4176.417599999993
2001	4274.451798947449
2002	4351.7550296825975
2003	4597.964537349128
2004	4950.905702309075
2005	5327.509379623404
2006	5769.549528886938
2007	6191.274181277809
2008	6477.999542730982
2009	6564.4493500804865
2010	6974.021019298719
2011	7389.112792324546
2012	7762.556233224607
2013	7994.5734016364195
2014	8224.266804971106
2015	8332.693280323252
2016	8647.518980896792
2017	9078.32659038228
2018	9590.829430120946
2019	9910.482751438189
2020	9665.10971553127
2021	10752.035002452132
2022	12142.243259547748
2023	13095.947836167596