Year	current US$
1965	686762778.5058978
1966	646233541.9814376
1967	660327288.810261
1968	435981308.41121495
1969	500242130.75060534
1970	890730972.1175584
1971	716653914.8176485
1972	612719751.8097209
1973	865588681.1520971
1974	734469146.0627468
1975	996492766.3305568
1976	1448460774.5779545
1977	2046658480.968251
1978	2157671315.94906
1979	2830714285.714286
1980	3285230508.3333335
1981	4330270270.27027
1982	5402586206.896551
1983	6053550640.279395
1984	6450225757.901526
1985	7852580881.58308
1986	8699719363.891487
1987	6441476826.394344
1988	5337876206.700739
1989	6815365293.267244
1990	7178106550.022431
1991	5915586573.612496
1992	7101375139.168898
1993	7262905162.064826
1994	7858837485.172005
1995	9023886759.068121
1996	8579009433.962264
1997	9026548672.566372
1998	10182998819.362455
1999	12120318490.120909
2000	12916483193.894026
2001	12964959568.733154
2002	11617977528.089888
2003	11480769230.76923
2004	12272727272.727272
2005	14076539101.497505
2006	18382608695.652172
2007	21225919439.579685
2008	27345454545.454544
2009	23738656987.295826
2010	31234119782.214157
2011	30636833046.471603
2012	22633333333.333332
2013	22713178294.573643
2014	15925394548.063128
2015	19137466307.27763
2016	18233128834.355827
2017	10781250000
2018	23021947101.857063
2019	38935079726.65148
2020	33830318153.462257
2021	27335882727.852135
2022	48674772036.47417
2023	42125187015.14739