Year	current US$
1989	0.0022315301326828975
1990	0.0022250356064629677
1991	0.002221044525387779
1992	3.6695487274414664
1993	17.813932621985625
1994	108.59494178453751
1995	257.51047460609374
1996	217.97959940605068
1997	212.97027082539947
1998	222.34674416651742
1999	309.712413739607
2000	176.56573215351216
2001	152.5841222431839
2002	132.3786931950131
2003	129.52950730889867
2004	165.6078233045454
2005	131.86391086148316
2006	132.28897240114404
2007	137.3819911972234
2008	113.72950266834441
2009	102.73225326985701
2010	134.1296744330703
2011	167.18041402032705
2012	154.58960343483
2013	144.0778220818668
2014	176.47382021485757
2015	101.122942910027
2016	128.15908915381678
2017	128.06295082710747
2018	104.72249944758536
2019	137.0305239021362
2020	132.1869179689182
2021	172.55573787441602
2022	87.79889009597694