Year	current US$
1971	180000.00715255702
1972	379999.99523162795
1973	469999.998807907
1974	519999.980926514
1975	270000.010728836
1976	2119999.8855590797
1977	250000
1978	189999.99761581398
1979	319999.99284744303
1980	250000
1981	730000.019073486
1982	680000.007152557
1983	2670000.07629395
1984	2680000.0667572
1985	10600000.3814697
1986	8989999.77111816
1987	11640000.3433228
1988	10529999.7329712
1989	16459999.0844727
1990	21190000.5340576
1991	18280000.6866455
1992	7960000.03814697
1993	1309999.9427795399
1994	3809999.94277954
1995	7650000.09536743
1996	7239999.771118159
1997	6630000.11444092
1998	7000000
1999	5940000.05722046
2000	5659999.84741211
2001	5050000.19073486
2002	4579999.92370605
2003	9159999.84741211
2004	9060000.4196167
2005	11079999.923706101
2006	13210000.038146999
2007	9979999.54223633
2008	15989999.7711182
2009	23489999.7711182
2010	25639999.3896484
2011	23649999.6185303
2012	31129999.1607666
2013	20639999.3896484
2014	40889999.3896484
2015	24750000
2016	21709999.084472697
2017	21170000.0762939
2018	18860000.6103516
2019	22920000.0762939
2020	25840000.1525879
2021	37209999.0844727
2022	28590000.1525879