Year constant 2021 international $ 2006 438907756006.0082 2007 450925789144.89465 2008 446045214367.1405 2009 431106314125.6026 2010 410179721826.5689 2011 364391366878.1073 2012 349178658248.269 2013 339236104552.78516 2014 345039862844.1654 2015 347183890427.69165 2016 345568911298.04785 2017 348151320727.5176 2018 348724584445.7789 2019 355207370045.53357 2020 324523716177.1603 2021 346287102498.97614 2022 359752887566.5529