Year	current international $
1990	5084.136661918389
1991	5253.121214349422
1992	5480.393725766472
1993	5797.02082907129
1994	6144.241804626349
1995	6475.64390554926
1996	6608.062185574827
1997	6829.668083405671
1998	6826.340936384745
1999	6521.790900349211
2000	6754.29733112748
2001	6912.4941969257325
2002	7086.09024457571
2003	7398.725549719364
2004	7889.387572733674
2005	8413.966511868837
2006	9136.577184413043
2007	9892.99669956688
2008	10293.772815023458
2009	10357.434987252618
2010	10831.744824459727
2011	11694.726607933704
2012	12075.481764004988
2013	12756.02106521389
2014	13323.169083716104
2015	13289.674489167637
2016	13971.339587731334
2017	14334.914608362222
2018	15161.31797443085
2019	16091.49904792312
2020	15427.593780784047
2021	17587.23179328882
2022	21055.66303000021
2023	21548.013368591743