Year current international $ 1990 23233.452971928455 1991 23648.83461370315 1992 24573.608700635865 1993 25394.59889444831 1994 26715.979935902018 1995 27879.72544447202 1996 29217.512139961473 1997 30814.64415103461 1998 32366.510177312477 1999 33965.19427542756 2000 36003.214827943346 2001 36904.42520791365 2002 37632.124102270354 2003 38970.4144153488 2004 41212.293337516916 2005 43689.54093518849 2006 46215.48472575118 2007 47412.482077392495 2008 47572.05071180005 2009 46188.174597300705 2010 48126.3210853567 2011 49916.213804633895 2012 51876.2043714195 2013 53176.54421475559 2014 55340.43944137431 2015 56614.46235414488 2016 57470.76902296012 2017 59674.51860869686 2018 62395.902391848525 2019 64598.41006126363 2020 63091.05033912642 2021 69929.48626029202 2022 76066.40259929674 2023 79894.63773722011