Year	current US$
1974	6869999.894872302
1975	7369999.913498758
1976	5029999.870806925
1977	2699999.947100879
1978	1330000.0112503767
1979	1789999.9879300622
1980	6499999.815598134
1981	6790000.010281804
1982	4299999.888986347
1983	4390000.058338044
1984	3900000.0897795004
1985	2579999.9926239247
1986	2889999.981969596
1987	6950000.023469324
1988	8359999.9528378295
1989	14029999.816790223
1990	7879999.985918408
1991	15990000.044927001
1992	15999999.98696148
1993	19179999.96244907
1994	26110000.00685454
1995	43959999.36759469
1996	34289999.40119685
1997	21259999.91782014
1998	4339999.685063963
1999	20950000.023469355
2000	9219999.738037582
2001	15239999.545738071
2002	17400000.16987324
2003	11659999.839961534
2004	-24279999.81120233
2005	6709999.8537451
2006	1530000.0160932583
2007	12000000.022351746
2008	14650000.395253288
2009	22840000.206604548
2010	25060000.682249695
2011	22119999.052956734
2012	25709999.883547474
2013	14410000.3391504
2014	6119999.937713152
2015	8339999.973773958
2016	18329999.88645316
2017	13170000.379905105
2018	6510000.206530092
2019	8120000.07368624
2020	4069999.9723583423
2021	12709999.965503814
2022	20590000.078082092