Year constant 2021 PPP $ 1991 8828.723380598592 1992 8954.442835684575 1993 8978.10477643319 1994 9136.654650712288 1995 9378.276790663067 1996 9681.161374734542 1997 9790.413219552904 1998 9964.121574164346 1999 10245.037233520261 2000 10404.937183046664 2001 10661.652778689628 2002 10922.931027157772 2003 11384.95356939997 2004 11963.967403403627 2005 12556.797694261177 2006 13129.219908495203 2007 13716.663091274184 2008 14025.993928517146 2009 14559.605867276292 2010 15200.459292244903 2011 15707.927928403453 2012 16329.841782923106 2013 16926.345984325286 2014 17648.704480796394 2015 18455.06808233448 2016 19265.764468062393 2017 20086.070898667956 2018 20909.145040771833 2019 21337.517323072516 2020 20762.21686149484 2021 21444.460901096576 2022 21765.0631000019 2023 21931.900763125333