Year	constant 2015 US$
1993	660.4224549674667
1994	411.8036865635708
1995	486.3909776563132
1996	336.61945959461974
1997	442.68407533419287
1998	503.8558317625357
1999	454.98399883540856
2000	539.979873681472
2001	553.3788187737467
2002	590.7531628050712
2003	619.112383030833
2004	646.5741049970636
2005	673.0905985559156
2006	698.6128666988234
2007	722.9520887479953
2008	745.884023106647
2009	767.1833127463115
2010	786.724751160081
2011	804.4762378508361
2012	820.6194559031967
2013	835.1908023275378
2014	830.9947722024116
2015	691.2332714650696
2016	764.418037751931
2017	781.8662644479065
2018	795.1413704073901
2019	815.9631121612804
2020	824.6537794225719
2021	844.2960253557975
2022	955.0081788987864