Year	current US$
1980	26401075.07876121
1981	21997829.865024023
1982	17691508.564109724
1983	16695823.287705954
1984	15652822.86557527
1985	17890354.43390984
1986	25988180.884883814
1987	41513565.43434752
1988	46773905.01959968
1989	43355745.229079306
1990	44163771.66489177
1991	42834459.724400625
1992	42124281.80775677
1993	49710796.12567918
1994	52282015.11765639
1995	66644751.66877025
1996	62488794.39325131
1997	57306288.862398915
1998	57134851.97334909
1999	80825602.4038183
2000	69408163.45287003
2001	64281092.858676255
2002	64231643.81084564
2003	82494687.9713665
2004	91231159.48908101
2005	87513294.56775509
2006	92135681.26811999
2007	100539282.83122699
2008	104169169.89650792
2009	111627654.64659658
2010	106366455.88885291
2011	110512887.10513219
2012	110784382.30379853
2013	118155478.64816876
2014	117106106.49790148
2015	112135887.48497345
2016	116786912.02844904
2017	107331547.37959386
2018	99731549.73539768
2019	99937226.3692216
2020	112779091.9482895
2021	122525249.17125109
2022	109115561.40042815
2023	115199036.69668058