Year base year varies by country 1990 26.9512606485478 1991 29.5012010067831 1992 31.6983042893415 1993 31.7191524755353 1994 40.3379757436452 1995 38.5399996138088 1996 39.018858722159 1997 38.2705521187163 1998 39.2887212302977 1999 41.8036989399685 2000 44.1313954208202 2001 44.9073847684195 2002 48.1359808900343 2003 52.4407514008842 2004 57.1033602078805 2005 61.3601123592109 2006 71.0938015622674 2007 72.2021705558177 2008 75.4832553604372 2009 79.2380865973323 2010 85.3715968883906 2011 85.7787358843712 2012 89.3763554525109 2013 87.2568172363634 2014 87.2670930519975 2015 91.8777352299073 2016 94.6845607466008 2017 100 2018 105.139870388179 2019 113.239562750041 2020 108.485687993413 2021 106.374326739728 2022 115.427584806013