Year constant 2010 US$ 2006 5240.78148594932 2007 5842.34519638416 2008 6282.24452055752 2009 5771.47456960627 2010 5867.36860750822 2011 6069.17898269061 2012 5856.85676390531 2013 6158.30451867413 2014 6275.25875127514 2015 6582.61692160055 2016 6827.3899963135 2017 7379.20573648682