Year	current US$
1960	37379985.04800598
1961	38499984.60000616
1962	44939982.024007194
1963	51939979.224008314
1964	56699977.320009075
1965	59639976.144009545
1966	69719972.11201116
1967	69341972.2632111
1968	71665971.33361147
1969	74787970.08481197
1970	81339967.46401301
1971	93258409.6854521
1972	104328596.05190413
1973	157213898.80381984
1974	211191843.13817835
1975	234750672.06845632
1976	253460063.36501583
1977	316365079.09126973
1978	359720089.9300225
1979	442149442.47366166
1980	562079981.099952
1981	604464843.3048434
2007	1625299015.7358773
2008	1571967637.237247
2009	1659900581.4951105
2010	2114884532.3642724
2011	2343225705.588231
2012	2264362640.0389676
2013	1979992590.0592794
2014	1881037904.453988
2015	1806542397.635037
2016	1614485495.231655
2017	2065150124.953082
2018	2179416999.913707
2019	1998887692.0650253
2020	1828439480.7615602
2021	2036537645.654097
2022	2029839963.7802405