Year constant 2015 US$ 2007 566.9903277160139 2008 547.5554625348263 2009 631.6557988141176 2010 699.8098639445252 2011 681.7184481914053 2012 717.7275861337168 2013 715.0432404093087 2014 739.9978098599836 2015 750.9385821626958 2016 689.540935172793 2017 650.4143967295872 2018 642.5941255928134 2019 641.5369044636699 2020 613.1768808821641 2021 586.1497857316713 2022 582.9921682687575 2023 589.4296361886624