Year	current US$
1977	9001000
1978	10116000
1979	12560000
1980	13753000
1981	13981000
1982	15561000
1983	20953000
1984	26017000
1985	27509829.5254833
1986	22481861.4607415
1987	28880742.2434706
1988	30509470.5494476
1989	24851181.0918075
1990	31338618.0876641
1991	32282037.8635083
1992	31769008.0437802
1993	37060900.3049149
1994	35538621.28779
1995	28709990.1535242
1996	30615940.1350527
1997	27493103.7519969
1998	28656375.8499965
1999	24490343.6783019
2000	24642268.2072333
2001	23759782.4929206
2002	25120530.7470288
2003	39771012.5925288
2004	55262356.5109295
2005	46864163.2271085
2006	47972473.597744
2007	65238721.718125
2008	69753902.8457779
2009	95702573.8593442
2010	104527450.867601
2011	143294510.36368
2012	152403989.217978
2013	155520937.735289
2014	158784814.420293
2015	156107668.817026
2016	176497315.495875
2017	198522418.422513
2018	215149318.603045
2019	218448401.776129
2020	298947629.788317
2021	361811847.800967
2022	375564012.935228
2023	396530126.417996