Year	current US$
1980	30631699.174134597
1981	23257348.62113725
1982	24187178.820888076
1983	36832041.86374157
1984	41287916.96059659
1985	42543760.37422665
1986	44211588.0309313
1987	46800608.10749301
1988	50811100.68373776
1989	43837576.05005084
1990	46617119.42593542
1991	49973137.53581662
1992	52296458.30393679
1993	51841981.88861746
1994	58648683.475795716
1995	61688861.93147862
1996	70444597.60649487
1997	53171657.892465696
1998	52941753.09271277
1999	57811349.99031571
2000	56573753.5576823
2001	52906666.666666664
2002	40625486.513548985
2003	47369174.71579129
2004	50335450.3980678
2005	52313208.13856579
2006	61848775.12626825
2007	85164124.46613789
2008	91597930.63676144
2009	97394780.49604504
2010	122551962.37774459
2011	130223633.35516469
2012	120922952.36810146
2013	119353729.80405638
2014	107477293.03958486
2015	120333060.25726393
2016	116321733.11823002
2017	153449009.24666387
2018	154758770.9345073
2019	192682979.97515962