Year	current US$
1975	1298212248.003043
1976	1174325216.095472
1977	1095040000
1978	1269948424.860778
1979	1478416700
1980	1599583250
1981	1867583325
1982	1953567444.4991484
1983	1990359204.0882895
1984	2087770174.8982654
1985	2005061474.0038803
1986	2260295063.410767
1987	2331129345.193719
1988	2778346860.1224213
1989	2809121871.7022214
1990	3059674551.5543704
1991	3234676433.322775
1992	2764291759.465479
1993	2901370833.3333335
1994	3335485714.285714
1995	3305130548.1927714
1996	3453136499.5458674
1997	3793862879.1863933
1998	3735141242.937853
1999	3899102281.089036
2000	4168915592.876792
2001	4819496598.639456
2002	4968489301.988673
2003	5239972053.531698
2004	5790540770.042837
2005	6467224776.252437
2006	7446047090.4130945
2007	8362130957.9712715
2008	10071426371.540674
2009	10256635126.856012
2010	12571048438.33852
2011	18268089188.73936
2012	18009882572.91086
2013	18679792994.018723
2014	18784076042.488216
2015	20356554578.807064
2016	21686948797.91044
2017	22741746718.684273
2018	25544503205.91526
2019	26179605394.352367
2020	28489794163.045868
2021	31523897271.958885
2022	35007033398.56179
2023	35158282358.58085