Year	current international $
1990	3283.4719063483026
1991	3316.0145642025323
1992	3091.4845985791667
1993	2330.875554875699
1994	2336.587667063536
1995	2654.634265595131
1996	2968.839521646226
1997	3133.4536371599634
1998	3210.303420523414
1999	3221.1328857140256
2000	3286.3584934812657
2001	3388.524527580986
2002	3783.142847878979
2003	3839.854143459356
2004	4224.139738261345
2005	4836.22688178372
2006	5364.9650874560475
2007	6057.771730131727
2008	6616.7687794751355
2009	6471.347922245441
2010	6587.408285349195
2011	6700.114099778039
2012	7351.760766882538
2013	7566.423050790704
2014	7999.826851376216
2015	7127.339573300101
2016	6850.384624586939
2017	6998.796187471664
2018	7353.34998821375
2019	7533.511854005027
2020	6455.119982132997
2021	7414.2789578320235
2022	7928.641497538795
2023	8040.543600620777