Year	current US$
1974	390000.0136345627
1975	129999.99895691886
1976	279999.99560415803
1977	560000.0042468305
1978	1430000.0164657868
1979	2379999.9691545954
1980	3989999.9164044843
1981	3680000.107735391
1982	4669999.906793236
1983	4370000.071823594
1984	4179999.925196166
1985	4320000.05990267
1986	5620000.081136825
1987	6829999.836161724
1988	5169999.994337559
1989	4360000.023618337
1990	5759999.884292489
1991	11580000.294372436
1992	7699999.9657273255
1993	8469999.896362424
1994	17269999.71270562
1995	36769999.76113439
1996	44299999.877810456
1997	44390000.43086712
1998	42649999.19943516
1999	44470000.36388633
2000	48259999.27893281
2001	48569999.87363816
2002	72199999.51310454
2003	94720000.8109211
2004	111809998.63892798
2005	132659999.12284313
2006	150960001.69776383
2007	177539999.88175932
2008	198769997.11617824
2009	141790000.91925257
2010	123310000.5723536
2011	129990001.59278513
2012	103899999.07650049
2013	110470000.62651934
2014	112930000.35546724
2015	92059999.12135306
2016	98379999.46810302
2017	103719999.0618974
2018	108119999.691844
2019	113339998.65874642
2020	118910000.54590401
2021	123840001.16400416
2022	112619999.51116735