Year	current US$
1977	773444149.117627
1978	895502028.4915242
1979	1097866805.942461
1980	1271824520.1212454
1981	1328866786.3788135
1982	1345199300.2203195
1983	1480512529.6198683
1984	1639472987.5072114
1985	1951131772.902286
1986	2183026852.5404406
1987	2356915407.4871683
1988	2554434611.9093943
1989	2911666510.70099
1990	3002975817.530216
1991	2885218118.16717
1992	3027659764.6984653
1993	3279248269.1367087
1994	3529601766.003747
1995	3584678960.0070367
1996	3870354755.593114
1997	3904623758.9404564
1998	3972171255.5540376
1999	4357188863.476116
2000	4911621340.604923
2001	4623515787.291261
2002	4967748225.788417
2003	5284598908.900948
2004	5654307327.465201
2005	6287849662.103261
2006	6443354213.4798155
2007	7070353919.34724
2008	7217513630.426991
2009	6768704558.090631
2010	7035658506.274827
2011	7119013335.447786
2012	7334453261.172882
2013	7535339732.888904
2014	7890269193.988296
2015	8139622386.1398535
2016	8799497390.181301
2017	8800761199.058372
2018	10116193371.946457
2019	11047156621.922731
2020	4465239880.204273
2021	6946333378.112466
2022	10340312283.434135