Year current US$ 2008 1542327523.0701625 2009 1541642122.8118923 2010 1657222703.1627622 2011 1975930313.1620486 2012 1891936408.0900586 2013 1964099635.4315388 2014 1945798482.320307 2015 1779652855.4437165 2016 1871924606.578771 2017 2151322968.8908567 2018 2498454721.631417 2019 2452287016.802207 2020 2292469870.936494 2021 3095195398.029518 2022 3040793298.2513704 2023 3297380353.9988966