Year constant 2010 US$ 2007 77660.1777941277 2008 77528.14427832 2009 77480.9685760878 2010 77919.3223868609 2011 79120.0503909547 2012 79774.8634904914 2013 80337.5459192603 2014 81621.8625249128 2015 82044.1138809551 2016 82806.223264907 2017 82644.1381563669 2018 83386.6501511161