Year	current US$
1975	79519650.82037772
1976	104728676.83664754
1977	120667127.81492582
1978	149565601.04835412
1979	170874046.95786542
1980	213898550.58781642
1981	270498501.7706347
1982	298556251.70253336
1983	312721329.338055
1984	352220103.5140289
1985	375919368.0196132
1986	402070280.57749933
1987	415962952.87387633
1988	434486515.93571234
1989	494688095.8866794
1990	536638518.11495507
1991	669027512.9392537
1992	747752655.9520566
1993	823753745.5734133
1994	1085535276.4914193
1995	1174884227.7308636
1996	1318714246.7992373
1997	1579950967.038954
1998	1650374404.3567052
1999	1970319945.5411847
2000	2360789652.8250513
2001	2312321307.0115724
2002	2419605173.5874743
2003	2397004765.146358
2004	2461810755.6160655
2005	2520353982.300885
2006	2430496936.691627
2007	2518992511.912866
2008	2609938733.832539
2009	2628999319.2648063
2010	2206466902.654867
2011	2350542382.5731792
2012	2415136174.26821
2013	2534073655.5479918
2014	2603546712.049013
2015	2679578379.8502383
2016	2772601307.0115724
2017	2974791449.9659634
2018	3038302981.62015
2019	3121180258.6793737
2020	3368537944.179714
2021	3916872947.58339
2022	4176886235.534377