Year constant 2015 US$ 2006 212768360.0079555 2007 213022255.381228 2008 210429382.52506223 2009 204436375.1276755 2010 196433915.93857217 2011 206139268.44219342 2012 214239248.5750237 2013 219385967.96672857 2014 238366396.57460183 2015 254008594.46017924 2016 276419546.6168102 2017 285417292.4585252 2018 285772491.63033664 2019 304598472.77610517 2020 291539877.4052697 2021 307630961.8550427