Year	current US$
1990	816968523.947647
1991	826837314.013527
1992	776964584.958432
1993	818605731.956938
1994	846112166.104281
1995	877940520.56199
1996	930366322.718113
1997	943532165.878627
1998	981783245.195237
1999	1027960844.75474
2000	1014020823.02416
2001	1092217006.74024
2002	1120493532.67425
2003	1222739625.91672
2004	1243218227.6938
2005	1301048446.79064
2006	1360089306.1378
2007	1386812372.6079
2008	1422668535.36695
2009	1321220103.15842
2010	1368326285.93256
2011	1399249632.69917
2012	1349372217.58568
2013	1317582681.13717
2014	1368042891.12388
2015	1508444923.3487
2016	1589086277.04433
2017	1737649739.21346
2018	1817893857.62347
2019	1891326389.15186
2020	1818342340.91919
2021	2023540723.09799