Year	current US$
1972	1450000
1973	1650000
1974	1720000
1975	6110000
1976	2690000
1977	2170000
1978	2100000
1979	2730000
1980	3350000
1981	2570000
1982	1610000
1983	1540000
1984	2410000
1985	2150000
1986	3900000
1987	10180000
1988	4960000
1989	5230000
1990	5390000
1991	6050000
1992	4850000
1993	6740000
1994	8800000
1995	10820000
1996	12690000
1997	15710000
1998	12940000
1999	16149999.999999998
2000	15980000
2001	17500000
2002	17280000
2003	27180000
2004	45440000
2005	46830000
2006	43740000
2007	47860000
2008	62680000
2009	56450000
2010	52870000
2011	67450000
2012	85320000
2013	72350000
2014	88060000
2015	86530000
2016	64440000
2017	85790000
2018	87240000
2019	96760000
2020	102350000
2021	121250000
2022	79120000