Year current US$ 1995 266308428.117841 1996 192016350.560355 1997 199832402.234637 1998 266145251.396648 1999 180921787.709497 2000 252878743.915114 2001 169112785.390379 2002 35470652.0419827 2003 85889530.4596056 2004 151326217.01037 2005 -280569268.345289 2006 65112620.4559708 2007 -202199847.785524 2008 141849312.291296 2009 28548029.1900662 2010 -140421839.149593 2011 -314887659.885365 2012 -120772435.822071 2013 -101924842.003857 2014 1266865.45191967 2015 114382024.209111 2016 128800196.683981 2017 94937255.3244887 2018 5258545.34578407 2019 145684327.013197 2020 -165886315.111855 2021 97335194.1702634