Year constant 2010 US$ 2006 1528.1497042012 2007 1495.80601733265 2008 1603.57318491293 2009 1724.86177575376 2010 1828.95277397948 2011 1869.00068175191 2012 1937.41048293732 2013 2079.67895545642 2014 2309.46704388476 2015 2670.37484426524 2016 2711.48897191474 2017 2833.42294661369