Year	current US$
1977	5909999.9573081685
1980	16000000.003725283
1981	15170000.080019232
1982	14640000.01363456
1983	15809999.933466315
1984	14849999.835714692
1985	17509999.897331
1986	16620000.099763274
1987	18979999.989271156
1988	22180000.018328432
1989	26790000.11831522
1990	34499999.955296524
1991	33799999.95604157
1992	26179999.89725651
1993	25939999.980852008
1994	38999999.996274725
1995	51519999.69221651
1996	52249999.90500508
1997	54229999.78624284
1998	56350000.11324882
1999	47670000.18618998
2000	39690000.295639046
2001	59380000.293254845
2002	87379999.45878984
2003	79410000.50306322
2004	72070000.11205672
2005	70139999.9856949
2006	77059999.79376791
2007	87450000.22649762
2008	123270000.15974043
2009	118589999.31812286
2010	119660000.02622606
2011	116089998.60286713
2012	122323187.70885468
2013	122579283.89310838
2014	122062241.55426025
2015	116015613.79432678
2016	98786967.57555008
2017	85354623.43692778
2018	82399340.21234514
2019	118520124.3162155
2020	127037860.75115202
2021	131407193.30310822
2022	154386981.1296463