Year Purchasing power parity; international dollars (Billions) 1997 1.149 1998 1.249 1999 1.381 2000 1.443 2001 1.558 2002 1.587 2003 1.681 2004 1.805 2005 1.907 2006 2.041 2007 2.245 2008 2.280 2009 2.061 2010 1.965 2011 1.834 2012 1.748 2013 1.740 2014 1.825 2015 1.850 2016 1.925 2017 1.982 2018 2.058 2019 2.135 2020 2.016 2021 2.408 2022 2.707 2023 2.871 2024 2.978 2025 3.070 2026 3.168 2027 3.270 2028 3.375 2029 3.485