Year current US$ 1993 -63238303.0303028 1994 -95893944.0559438 1995 -39310969.1358025 1996 -198200934.471043 1997 31594349.7047387 1998 -366868204.762168 1999 -127894387.198232 2000 20163964.2582797 2001 77743120.0040309 2002 73984624.253182 2003 -16282218.8862338 2004 106712822.729643 2005 115514786.629853 2006 41258861.7417373 2007 453790149.677951 2008 218444720.714613 2009 709204039.667007 2010 465928420.355405 2011 531324636.36578 2012 114444625.962658 2013 -344310350.277285 2014 -364223906.562891 2015 -338111565.960658 2016 742880425.868077 2017 1168546071.18558 2018 1227410551.22376 2019 956492483.239576 2020 1377250065.99242 2021 560746946.049952