Year current US$ 2005 100701162.437207 2006 248059815.215907 2007 502013046.567723 2008 711994135.424992 2009 430572017.406479 2010 335977990.123958 2011 441447823.583722 2012 -84480585.3925105 2013 -56862681.9791905 2014 -458670301.900817 2015 -268721038.425294 2016 -895527252.081552 2017 -573439145.639039 2018 -479110132.634832 2019 107266252.653515 2020 -407767543.506611 2021 -907646017.984405