Year current US$ 1982 500000 1983 1049999.952 1984 1600000.024 1985 1600000.024 1986 3951851.845 1987 3285185.099 1988 4151851.6539999996 1989 3377777.815 1990 4459259.25925926 1991 1759259.25925926 1993 3037037.03703704 1994 1851851.85185185 1995 1888888.88888889 1996 5811111.11111111 1997 2266666.66666667 1998 2329629.62962963 1999 2592592.59259259 2000 2592592.59259259 2001 2777777.77777778 2002 2777777.77777778 2003 2777777.77777778 2004 2777777.77777778 2005 14849628.2903437 2006 15424976.8376948 2007 16027014.5582361 2008 16902751.3438992 2009 16368012.8866565 2010 16737684.8706075 2011 17057090.0792814 2012 16436231.9127382 2013 16620417.0200616 2014 17431302.8352504 2015 18735427.6396948 2016 21837280.0148148 2017 20922398.0814815 2018 15898611.9074074 2019 17119542.4555556 2020 19634858.6703704 2021 14417590.545926 2022 13150697.0170615