Year	current US$
1980	212850558.5999549
1981	196610717.32642597
1982	184575756.51636153
1983	191118970.05471855
1984	184069257.35848597
1985	195553567.7496576
1986	277677193.694519
1987	336548592.22325104
1988	354262330.36539274
1989	342746840.08991486
1990	428916975.89430255
1991	423598320.3927277
1992	461257334.5262075
1993	454703765.1974935
1994	319640674.4869242
1995	399479541.850166
1996	396421284.3960024
1997	364678585.28548014
1998	369738383.301266
1999	382656388.63636065
2000	351478573.92977035
2001	379225537.1567072
2002	425207810.9432808
2003	545532577.7498995
2004	631540708.3452435
2005	652172845.9539375
2006	696992620.2114145
2007	797225240.2030938
2008	913871833.3930439
2009	904095426.4615303
2010	907127366.6641303
2011	1022301422.4375358
2012	1014150823.3003259
2013	1116441467.3321018
2014	1154095453.265265
2015	971041229.2631837
2016	1018354713.4847599
2017	1082473390.900302
2018	1195077463.0197542
2019	1200664052.3251202
2020	1229785123.8297899
2021	1302397963.154979
2022	1248694701.425312
2023	1355203004.530994