Year	current US$
1978	70300003.05
1979	113900001.5
1980	82400001.53
1981	69400001.53
1982	36799999.24
1983	39000000
1984	25799999.24
1985	23700000.76
1986	41900001.53
1987	19100000.38
1988	23600000.38
1989	25700000.76
1990	14900000
1991	18700000
1997	59000000
1998	39200000
1999	21800000
2000	24100000
2001	28400000
2002	37500000
2003	71500000
2004	76100000
2005	93662000
2006	115457000
2007	123930000
2008	138885000
2009	65617000
2010	68063986
2011	70413825.16
2012	96922000
2013	77324470.741963
2014	81199881.1354425
2015	72104698.870737
2016	63405836.4378634
2017	121370620.673676
2018	132001364.063928
2019	103806723.85359
2020	88510886.0824227
2021	122331951.706984
2022	131254122.967163