Year	current US$
1970	5799107.552
1971	11705249.79
1972	12598646.16
1973	16028392.789999997
1974	20272895.81
1975	26190416.34
1976	41384174.35
1977	60505138.4
1978	48687911.99
1979	46587486.27
1980	65987792.97
1981	67646598.82
1982	136293.0089
1983	24535535.81
1984	22480361.94
1985	23343118.67
1986	18435108.18
1987	98183372.5
1988	104329017.6
1989	127266342.2
1990	152504684.4
1991	206945068.4
1992	232189392.1
1993	231370147.7
1994	249319122.3
1995	255220836.857018
1996	269921303.798516
1997	315803567.074952
1998	125562625.196401
1999	363992361.710811
2000	437804032.852545
2001	578184768.644122
2002	512116309.85076
2003	1357412369.77668
2004	1595817024.61163
2005	1811506054.40485
2006	2245090114.17167
2007	3205455116.73307
2008	4095491168.94481
2009	3967954238.18227
2010	4060977951.31987
2011	4384693878.28591
2012	4293492857.77708
2013	4596010179.7734
2014	4561047961.77625
2015	3514685603.1632
2016	2965219521.75538
2017	3046806886.56865
2018	3091731621.33963
2019	3204794940.67372
2020	3113268859.67089
2021	3116526011.1869
2022	3289436026.3086
2023	3690081708.62891