Year	constant 2021 international $
1995	5847.2371429379655
1996	6071.637606624267
1997	6356.722737423032
1998	6520.36393800994
1999	6655.17778973154
2000	6942.351182744792
2001	7158.282567469826
2002	7442.956252759268
2003	7849.305689599915
2004	8365.52033123043
2005	8885.9060796456
2006	9644.418373663244
2007	10535.871179542744
2008	11145.336558056444
2009	11371.986545267115
2010	12212.562709529453
2011	13335.9202173344
2012	13905.576156421597
2013	14454.456643392728
2014	15030.533807458909
2015	15435.181467495257
2016	15984.781280255447
2017	16682.400115443692
2018	17263.220243030803
2019	17850.288302750738
2020	17571.576168879597
2021	18766.977899144596
2022	19326.278672966306