Year current US$ 1973 119999.997317791 1974 3660000.08583069 1975 5980000.01907349 1976 4420000.07629395 1977 3950000.04768372 1978 4440000.05722046 1979 5699999.80926514 1980 9699999.80926514 1981 9140000.34332275 1982 7579999.92370605 1983 5260000.228881841 1984 3960000.03814697 1985 5489999.771118159 1986 12409999.8474121 1987 13340000.1525879 1988 16950000.762939498 1989 15300000.1907349 1990 15369999.8855591 1991 15930000.3051758 1992 18129999.1607666 1993 13689999.5803833 1994 12619999.8855591 1995 47639999.3896484 1996 26319999.6948242 1997 5940000.05722046 1998 20659999.8474121 1999 16489999.7711182 2000 6300000.19073486 2001 8119999.88555908 2002 4570000.17166138 2003 6269999.98092651 2004 10579999.923706101 2005 7860000.1335144 2006 4800000.19073486 2007 64180000.305175796 2008 25530000.6866455 2009 27889999.3896484 2010 16850000.3814697 2011 17760000.2288818 2012 8310000.419616699 2013 8520000.45776367 2014 9890000.34332275 2015 13500000 2016 9119999.88555908 2017 11859999.6566772 2018 18149999.6185303 2019 84480003.3569336 2020 76139999.3896484 2021 126319999.69482401 2022 15489999.7711182