Year current US$ 1969 4280000.20980835 1970 13000000 1971 12159999.8474121 1972 14010000.2288818 1973 21760000.2288818 1974 19579999.9237061 1975 28399999.6185303 1976 26959999.084472697 1977 28360000.6103516 1978 31219999.3133545 1979 54479999.5422363 1980 26020000.4577637 1981 31670000.0762939 1982 43569999.6948242 1983 38189998.626709 1984 10640000.3433228 1985 19020000.4577637 1986 7300000.19073486 1987 15550000.1907349 1988 13340000.1525879 1989 4789999.96185303 1990 10140000.3433228 1991 13729999.5422363 1992 12369999.8855591 1993 10460000.038146999 1994 14000000 1995 7510000.228881841 1996 200000.00298023198 1997 4260000.228881841 1998 3759999.99046326 1999 3640000.10490417 2000 9140000.34332275 2001 1509999.9904632599 2002 3220000.02861023 2003 3920000.07629395 2004 3890000.10490417 2005 4090000.1525878897 2006 1100000.02384186 2007 409999.99642372096 2008 529999.971389771 2009 2460000.03814697 2010 1129999.99523163 2011 1730000.01907349 2012 761568.963527679 2013 1371852.99396515 2014 4496099.94888306 2015 997209.012508392 2016 1708904.98161316 2017 2275300.02593994 2018 1167397.1414566 2019 10333800.3158569 2020 10393965.721130399 2021 5110970.02029419 2022 6026779.65164185