Year current US$ 1960 0 1961 0 1966 0 1967 0 1987 0 1988 0 1989 0 1990 0 1991 0 1992 219999.998807907 1993 530000.001192093 1994 549999.997019768 1995 740000.002086163 1996 1079999.9833107 1997 410000.002011657 1998 1440000.02369285 1999 1080000.01497567 2000 640000.004321337 2001 1990000.03002584 2002 2369999.9731034 2003 530000.004917383 2004 2019999.9809265102 2005 2199999.9973923 2006 2600000.04246831 2007 4929999.95313585 2008 4219999.98763204 2009 3299999.9709427403 2010 9990000.400692219 2011 10579999.992623901 2012 8099999.75562096 2013 7150000.00782311 2014 5810000.02473593 2015 5259999.92527068 2016 4549999.89643693 2017 6269999.98651445 2018 6759999.84517694 2019 7350000.07227063 2020 10850000.0350177 2021 11519999.4966388 2022 14849999.738857178