Year	current US$
1970	180000.00715255702
1971	319999.99284744303
1972	400000.00596046395
1973	469999.998807907
1974	790000.021457672
1975	1299999.95231628
1976	1350000.02384186
1977	2200000.04768372
1978	4679999.82833862
1979	5000000
1980	4019999.98092651
1981	3210000.03814697
1982	3819999.9332428
1983	6480000.01907349
1984	8619999.88555908
1985	9149999.61853027
1986	13449999.8092651
1987	12159999.8474121
1988	12869999.8855591
1989	14010000.2288818
1990	15029999.7329712
1991	15720000.2670288
1992	18200000.762939498
1993	11930000.3051758
1994	11630000.1144409
1995	10890000.3433228
1996	10829999.923706101
1997	7880000.11444092
1998	7039999.96185303
1999	8970000.26702881
2000	11520000.4577637
2001	5869999.88555908
2002	6849999.90463257
2003	8029999.73297119
2004	10029999.7329712
2005	10850000.3814697
2006	12850000.3814697
2007	14989999.7711182
2008	17930000.3051758
2009	21409999.8474121
2010	20979999.5422363
2011	20100000.3814697
2012	14560431.4804077
2013	19066026.6876221
2014	20383249.2828369
2015	21894634.2468262
2016	19018743.5150146
2017	20691810.607910197
2018	20706418.9910889
2019	22496000.289917
2020	22524000.167846702
2021	17847000.122070298
2022	19209999.084472697