Year current US$ 1995 73225589.9616402 1996 21243649.3530675 1997 146128196.12731 1998 73148302.775911 1999 283478834.691038 2000 333152363.190626 2001 432722652.577827 2002 464167403.562693 2003 478468335.952888 2004 434769486.059288 2005 597404299.095169 2006 990875423.465941 2007 1112076607.83427 2008 1068434247.47403 2009 1185266349.99597 2010 1214669926.87538 2011 1189107931.59564 2012 1639248873.75323 2013 1864222028.96652 2014 2114565674.5336 2015 2322367887.36181 2016 2479619532.68855 2017 3331560554.28911 2018 4231072920.73904 2019 4736875408.49599 2020 4542037179.98116 2021 4968809905.3513