Year	current international $
1990	7688.218263657644
1991	6980.068887490118
1992	4913.3293192888395
1993	4874.334634469729
1994	5173.306179136562
1995	5513.884142037497
1996	5806.898148055489
1997	6486.2707630723025
1998	7068.155035508752
1999	7405.827073378829
2000	8040.509048465324
2001	9047.208638637809
2002	10081.191863628083
2003	11061.615375417698
2004	12279.015316869703
2005	13913.85174785676
2006	15859.315388202454
2007	18240.67123570591
2008	19573.257410740316
2009	17023.297592609695
2010	17703.9136026456
2011	19248.458012462503
2012	21290.501647116642
2013	22639.159026444657
2014	23815.608602352226
2015	24972.836276688075
2016	26721.836498586807
2017	28673.62257363072
2018	30877.041926480502
2019	33294.50778857495
2020	33733.065125720466
2021	36777.89284598388
2022	41106.52706571493
2023	42501.027882049464