Year current US$ 1973 90000.0035762787 1974 3579999.92370605 1975 7869999.88555908 1976 4329999.92370605 1977 4949999.80926514 1978 7110000.1335144 1979 9050000.19073486 1980 17610000.6103516 1981 14760000.2288818 1982 16760000.2288818 1983 9920000.07629395 1984 16219999.3133545 1985 16590000.152587902 1986 11720000.2670288 1987 15880000.1144409 1988 17879999.1607666 1989 23860000.6103516 1990 19639999.3896484 1991 17629999.1607666 1992 12699999.8092651 1993 8909999.84741211 1994 19590000.1525879 1995 25000000 1996 43130001.0681152 1997 14560000.4196167 1998 19350000.3814697 1999 9930000.30517578 2000 15279999.7329712 2001 19690000.5340576 2002 29600000.3814697 2003 10970000.2670288 2004 29399999.6185303 2005 21110000.6103516 2006 19659999.8474121 2007 17569999.6948242 2008 20969999.3133545 2009 35080001.8310547 2010 32450000.7629395 2011 24440000.5340576 2012 25680000.3051758 2013 20079999.9237061 2014 16290000.9155273 2015 11710000.038146999 2016 8569999.69482422 2017 19219999.3133545 2018 26940000.5340576 2019 51389999.3896484 2020 64319999.694824204 2021 79069999.6948242 2022 59520000.4577637