Year current international $ 1990 2908.2927492051595 1991 3025.811532734088 1992 3102.470179825882 1993 3224.686444295578 1994 3346.940026972381 1995 3516.0844397879414 1996 3725.1573741058937 1997 3926.25937749505 1998 3951.032598890445 1999 4096.441379598121 2000 4385.942700070144 2001 4611.100180257728 2002 4845.745053760796 2003 5168.350668884666 2004 5655.379964033898 2005 6182.390157939038 2006 6928.046322615139 2007 7687.940844010822 2008 8301.897564815863 2009 8518.334851352654 2010 9174.102973934772 2011 9864.742924906242 2012 10498.35996514 2013 10973.70149709563 2014 11356.288267797527 2015 11467.932670915001 2016 11901.271574432576 2017 12568.68680489693 2018 13425.98426078998 2019 14216.402799932379 2020 14242.213948902934 2021 16062.655885579688 2022 17849.434001482317 2023 19331.74650936078