Year	current US$
1993	1.662582788984087
1994	52.59127917778334
1995	39.71846417160684
1996	52.84757063123637
1997	49.21704867935598
1998	52.258431740064246
1999	137.2932606833857
2000	123.79401687937226
2001	121.69747404991936
2002	135.56371378638542
2003	131.56014057845877
2004	130.94030015087893
2005	113.39779183300705
2006	100.71268884745074
2007	104.12353882894833
2008	107.15736475190934
2009	102.7117884692661
2010	99.83568680571733
2011	99.2516732680291
2012	76.54078109517255
2013	102.3188009708865
2014	110.51561865902553
2015	112.06685072092522
2016	88.31183866632394
2017	78.97687520612833
2018	90.16167764884008
2019	74.49386294262794
2020	152.3120176534962
2021	184.10398114689835
2022	122.31726551540746