Year	constant 2015 US$
1980	397594019.0566291
1981	412284274.32986003
1982	439365128.8085821
1983	457942674.82597005
1984	476396864.5881363
1985	486013186.43553877
1986	495344788.02510184
1987	504742049.5889295
1988	516557639.68364936
1989	505134946.67755306
1990	528031713.234076
1991	499759021.0682869
1992	547613386.7928723
1993	561607148.7329859
1994	530596879.7038167
1995	550375008.8316907
1996	542389069.0123134
1997	564086340.648445
1998	570392315.9234905
1999	582250140.6661133
2000	645699046.0135679
2001	661360969.5677526
2002	674276347.8412337
2003	687984320.6482774
2004	700531319.668667
2005	721027285.4220756
2006	740479526.9062735
2007	749395975.5534699
2008	776099317.1345084
2009	801681664.6955764
2010	832361806.5698872
2011	866992685.3241082
2012	893665412.9351376
2013	935285435.4333549
2014	958540596.8528992
2015	971041229.2631837
2016	1003579850.9111701
2017	1041087658.5369053
2018	1079748846.3762138
2019	1098098487.7941701
2020	1095812411.6289623
2021	1119033225.7371788
2022	1145593076.7798986
2023	1173205821.010704