Year	current US$
1972	56779369.57613407
1973	64741938.876715206
1974	77788338.44146283
1975	79782631.8244758
1976	81160891.07857618
1977	83255007.2901775
1978	85303862.99534808
1979	91733636.7255481
1980	106197407.9958999
1981	120206755.28391398
1982	115883430.91566142
1983	110512236.64009361
1984	125884579.42438434
1985	131024646.48382483
1986	157437702.17880514
1987	230733447.37953493
1988	266444163.39107046
1989	284924577.843893
1990	295580365.4865784
1991	255883459.62934822
1992	241332658.3292006
1993	224630938.32589272
1994	239687888.92219824
1995	248459209.12345183
1996	274719446.9421781
1997	304678887.5142584
1998	296327847.1144554
1999	321171109.03320575
2000	423072895.05262256
2001	474119633.5481252
2002	536844922.6861866
2003	612258231.5891427
2004	708803347.6720582
2005	833908735.7180903
2006	930640627.3362913
2007	1151576700.3543594
2008	1266571142.0713663
2009	1371161048.825878
2010	1515405794.8996046
2011	1696376932.2232072
2012	1839224265.1587799
2013	1874316265.27315
2014	1924751301.3973348
2015	1995199619.0979977
2016	2115586505.3895323
2017	2228450817.7533946
2018	2391830463.818363
2019	2578551453.535481
2020	2342260818.535871
2021	2558909538.534602
2022	2810795079.0210543