Year	current US$
1970	569999.9891221527
1971	430000.00342726696
1972	1299999.9914318316
1973	1660000.0243633986
1974	3680000.0201910697
1975	7470000.097528102
1976	7250000.093132262
1977	2530000.0831484813
1978	3100000.0052154018
1979	5049999.941140414
1980	11109999.714419236
1981	5599999.981001019
1982	6160000.111907724
1983	7020000.141113996
1984	9509999.908506863
1985	10910000.175237656
1986	17249999.497085806
1987	19510000.308975585
1988	48590000.07808208
1989	38980000.719428055
1990	52300001.55605374
1991	61810000.07130213
1992	50319999.82334672
1993	65039999.69176945
1994	71369999.54469502
1995	39820000.81986191
1996	38639999.726787224
1997	31140000.72516503
1998	29170000.124722682
1999	26319999.588653427
2000	30809999.87386161
2001	27690000.167116545
2002	39549999.28176407
2003	40999999.65168533
2004	43820000.57399278
2005	60769999.93994837
2006	37690000.908449255
2007	44040000.76465307
2008	54870001.034811184
2009	66790000.230073914
2010	79869999.91163611
2011	117889998.95006411
2012	103870001.17078428
2013	154579999.75979325
2014	161120001.82084748
2015	156080001.36911872
2016	168689999.0960956
2017	152249999.07240275
2018	154599998.22452658
2019	134440000.43533745
2020	147229999.44724122
2021	162169999.18967497
2022	114850000.52303074