Year	current international $
1990	24456.903901442256
1991	25055.41932366768
1992	25029.656204331324
1993	24555.737184460533
1994	24886.433285906947
1995	25324.279682093482
1996	26474.138264870933
1997	29129.707798330222
1998	30163.14936638052
1999	31616.4215391604
2000	33249.56490547388
2001	35824.80877307048
2002	36409.42987513619
2003	38686.47946812441
2004	41269.139350213496
2005	43234.77752510524
2006	46481.20589352049
2007	49755.33031699529
2008	49225.32229943552
2009	48301.589233566694
2010	49486.346817241225
2011	51184.55368642118
2012	49232.97029923147
2013	48054.9903306666
2014	49938.67099288195
2015	51035.887599070105
2016	52847.30086819021
2017	53031.66191182187
2018	55354.389103722795
2019	57573.6930490229
2020	51881.289672687315
2021	58829.85007205054
2022	68311.77298104827
2023	71587.48177605768