Year base year varies by country 1990 52.5568604714934 1991 56.6800499919045 1992 59.8438966890446 1993 62.7666126614846 1994 71.6102294465889 1995 75.4854548627453 1996 83.1631406301724 1997 85.4560500837289 1998 84.8427212560832 1999 91.1568835192621 2000 100 2001 106.554118436008 2002 106.974074136436 2003 105.44366000856 2004 116.332163789945 2005 130.234379660296 2006 142.081158241865 2007 157.381969636318 2008 182.484592058537 2009 177.411113386781 2010 189.651176405648 2011 211.60155114101 2012 267.139034363381 2013 352.009623588671 2014 482.586129220329 2015 667.004236000145 2016 912.935645054123 2017 1252.73885751758 2018 1417.94930994931 2019 1699.14785728803 2020 2529.23055739472 2021 3750.53756132971