Year	current international $
1990	14877.761987457689
1991	15436.609824049792
1992	15839.650756570087
1993	16089.00769126572
1994	16814.768082409315
1995	17652.304785753906
1996	18272.120527604544
1997	18994.034838530937
1998	19856.34462090682
1999	20667.45594564658
2000	21985.636526627062
2001	23037.870154070275
2002	23993.733993878563
2003	24527.341969419558
2004	25734.016378053217
2005	26737.847880600235
2006	29077.099384507193
2007	30873.858957890672
2008	32226.598779899476
2009	31718.830302830997
2010	32808.82949215984
2011	34455.42420443593
2012	34970.63459870136
2013	36119.94366591936
2014	37097.45614411633
2015	38091.86674364137
2016	40497.4952685087
2017	42623.521417843476
2018	44731.99368976274
2019	48265.2194662635
2020	47020.12017936125
2021	52121.02640970622
2022	57309.277387351736
2023	60260.55043007203