Year current US$ 1996 3159999.9815225564 1997 660000.0038743016 1998 2370000.006631016 1999 769999.9921023836 2000 800000.0026077032 2001 2070000.0002980244 2002 9989999.817684297 2003 16359999.474138025 2004 21059999.55534935 2005 29500000.77113508 2006 17839999.75398182 2007 28849999.995902177 2008 25720000.224187963 2009 31529999.17417765 2010 6749999.951571236 2011 6450000.051409012 2012 5449999.963864686 2013 1699999.965727328 2014 2289999.9804794774 2015 1490000.0151246786 2016 139999.99873340174 2017 199999.99366700609 2018 119999.9991804361 2019 159999.9964237215 2020 59999.998658895405 2021 3939999.980852004 2022 6379999.9617040185