Year	constant 2015 US$
1970	15106345.429795336
1971	15679452.336501513
1972	14270975.092827458
1973	16480788.487862907
1974	17450309.197048973
1975	15996286.204989776
1976	18419829.90623504
1977	17450309.197048973
1978	17935327.623361908
1979	24236438.017911628
1980	28289196.307253856
1981	30099061.099282276
1982	48314685.89187844
1983	56718408.25308732
1984	61958796.9567086
1985	57388628.33002816
1986	66925160.41592479
1987	69452433.30786039
1988	86508737.37181523
1989	93958548.45271455
1990	102778188.58214378
1991	102759497.93333876
1992	116033440.30756757
1993	133452921.66462098
1994	138379057.216953
1995	145897014.87261677
1996	149371927.1200328
1997	174591493.26508898
1998	176234049.37906936
1999	175919921.3534625
2000	208182342.93819785
2001	265112416.9237358
2002	345010060.66362315
2003	390760827.47933996
2004	413734622.23638767
2005	362723133.7936634
2006	397525121.8686279
2007	401776642.3044256
2008	392076477.1074008
2009	378990254.5381577
2010	391387847.9144402
2011	380258106.15555054
2012	364432694.7105565
2013	349565057.8013154
2014	309808640.12909144
2015	357092071.42824113
2016	419635815.30935085
2017	379792544.7728471
2018	433498505.30058295
2019	430236212.86894566
2020	391004509.74576867
2021	420433428.97166157
2022	405104766.48570335
2023	381066449.345125