Year	current US$
1968	2519999.98092651
1969	740000.009536743
1970	829999.983310699
1971	680000.007152557
1972	1220000.02861023
1973	1850000.02384186
1974	2279999.97138977
1975	2460000.03814697
1976	1519999.98092651
1977	1889999.98569489
1978	2430000.0667572
1979	3640000.10490417
1980	4869999.88555908
1981	8079999.923706049
1982	7960000.03814697
1983	7150000.09536743
1984	7849999.90463257
1985	4829999.92370605
1986	4710000.03814697
1987	5599999.90463257
1988	10829999.923706101
1989	13840000.1525879
1990	13600000.3814697
1991	14970000.2670288
1992	11310000.4196167
1993	9609999.65667725
1994	8739999.77111816
1995	7739999.771118159
1996	9699999.80926514
1997	10840000.1525879
1998	9659999.84741211
1999	7710000.03814697
2000	2349999.90463257
2001	1690000.0572204601
2002	2769999.98092651
2003	4599999.90463257
2004	5559999.94277954
2005	7710000.03814697
2006	7079999.92370605
2007	8880000.11444092
2008	10039999.961853001
2009	11779999.7329712
2010	8590000.15258789
2011	8689999.5803833
2012	8130726.8142700195
2013	6978059.76867676
2014	8701149.94049072
2015	8861531.257629389
2016	7801321.5065002395
2017	8037681.57958984
2018	10517170.9060669
2019	10488722.8012085
2020	15105908.3938599
2021	12044578.552246101
2022	13384003.6392212