Year current US$ 1989 9999.99977648258 1991 219999.998807907 1992 140000.000596046 1993 119999.997317791 1994 150000.005960464 1995 170000.00178813902 1996 250000 1997 270000.010728836 1998 180000.00715255702 1999 79999.9982118607 2000 59999.9986588955 2001 140000.000596046 2002 219999.998807907 2003 280000.001192093 2004 389999.98569488496 2005 310000.002384186 2006 850000.023841858 2007 2430000.0667572 2008 10250000 2009 5920000.07629395 2010 14850000.3814697 2011 8710000.03814697 2012 31680000.3051758 2013 17250000 2014 19860000.6103516 2015 10310000.4196167 2016 36569999.6948242 2017 23309999.4659424 2018 25569999.6948242 2019 35340000.1525879 2020 17709999.084472697 2021 26069999.6948242 2022 34549999.237060495