Year	current US$
1976	857102779.2938457
1977	1131120190.6470253
1978	1376209445.7718835
1979	1697393855.8608274
1980	1999032464.2120216
1981	2256248745.203352
1982	2446638410.667179
1983	1989356701.9495754
1984	2117137203.4399395
1985	2106563599.3423178
1986	2116914671.6750576
1987	2965415419.2807264
1988	3220340125.557854
1989	3328097625.350356
1990	3831311951.677774
1991	4085198779.651272
1992	4612643353.713874
1993	4620353141.813307
1994	4968260155.633034
1995	5975441347.6268015
1996	6449938666.477265
1997	6626197330.321003
1998	7386632354.720539
1999	7644119807.737801
2000	8152645929.178376
2001	8181765036.118345
2002	8506144506.748871
2003	10328347395.120102
2004	14176049540.61128
2005	16422597998.293102
2006	18619535415.254402
2007	22402076212.821102
2008	28786643362.82865
2009	26246000857.79437
2010	28136221971.051666
2011	31788853030.693455
2012	37050020196.67586
2013	41358068848.89574
2014	41993066186.513596
2015	39109497790.620514
2016	41818596188.593155
2017	46442580932.580284
2018	49871034732.51486
2019	54098402832.04776
2020	54674411205.705284
2021	64790731185.22793
2022	68989023076.38635