Year constant 2015 US$ 2006 298403846328.7915 2007 330020845487.8776 2008 359964341647.8621 2009 353821506529.47485 2010 378980265880.91034 2011 391583396496.63104 2012 447815380953.45435 2013 467997000046.3993 2014 506828948038.4869 2015 541430991743.1082 2016 583236567852.108 2017 627021912374.7582 2018 674495038706.4205 2019 673692166427.6283 2020 671116355532.0356 2021 728247104020.6084 2022 772532220894.959 2023 820569294877.4579