Year	current US$
1973	0.8324546643013736
1974	67.97885946917232
1975	79.19495523382736
1976	63.39214128971231
1977	38.133207049160895
1978	31.602170738153188
1979	17.82978926061559
1980	70.95114084533736
1981	92.64863361205643
1982	64.66234406875215
1983	53.64372365684834
1984	43.253589246832
1985	52.57964172829952
1986	86.49209886070841
1987	78.30092146620119
1988	129.52545135203158
1989	132.92324395575798
1990	86.50677380775046
1991	160.2573047330898
1992	185.2206040106092
1993	172.48224476440393
1994	209.21752645107298
1995	316.5122037749304
1996	250.56993181130423
1997	163.77834654928594
1998	39.590705034247996
1999	162.64786024617203
2000	69.52978152092727
2001	101.68499398300123
2002	205.74911412015712
2003	95.4326078959852
2004	-131.94186567315865
2005	64.57620539329689
2006	111.9721234435538
2007	93.5421869667373
2008	92.71782528023502
2009	227.35845688000745
2010	240.73479115382395
2011	205.0016028088373
2012	154.80233380155553
2013	145.7655600728345
2014	110.80982608655064
2015	78.34964798962437
2016	86.33150358667615
2017	86.81270984596614
2018	48.12016785627304
2019	179.80435209595313
2020	547.7663669062515
2021	556.3564742096743
2022	185.75868521888