Year Purchasing power parity; international dollars (Billions) 2000 1.105 2001 1.315 2002 1.246 2003 1.243 2004 1.281 2005 1.361 2006 1.345 2007 1.523 2008 1.729 2009 1.916 2010 2.121 2011 2.293 2012 2.658 2013 2.864 2014 3.195 2015 3.484 2016 3.817 2017 3.950 2018 4.013 2019 4.878 2020 6.730 2021 7.413 2022 6.305 2023 5.473 2024 5.162 2025 5.419 2026 5.691 2027 5.973 2028 6.269 2029 6.585