Year current international $ 1990 1759.6639086736295 1991 1781.8361794182558 1992 1714.7823592156626 1993 1731.4973483875308 1994 1748.1192670450293 1995 1840.3945001103198 1996 1896.1884061151434 1997 1977.91329089727 1998 1996.6330680801439 1999 2021.0316199038375 2000 2075.9082627221933 2001 2143.270097634137 2002 2211.3778941109026 2003 2274.8790978737798 2004 2401.939010546945 2005 2565.2017899165735 2006 2739.403605078803 2007 2896.4463945513057 2008 2996.9296330217403 2009 3031.9548551405196 2010 3143.9377331599735 2011 3263.6108090643024 2012 3283.262700276091 2013 3413.163459832111 2014 3621.9797554209936 2015 3640.2321614825128 2016 3693.473388644101 2017 3724.774108238372 2018 3807.1066703989773 2019 3961.4880773135824 2020 3916.050531123683 2021 4164.615124071275 2022 4501.4070128912945 2023 4710.963241570367