Year base year varies by country 1990 53.866631172634 1991 56.2880886426591 1992 57.482743427816 1993 60.4691825732185 1994 61.8054563633765 1995 62.4334920190421 1996 64.0183140317801 1997 64.6052969915143 1998 70.2280614774416 1999 73.3415688696724 2000 72.3713778829093 2001 74.0036341611143 2002 74.6754807692306 2003 75.5087636748616 2004 79.9095232571625 2005 85.2376701629098 2006 88.7293211392503 2007 96.3709219329584 2008 98.1122817297554 2009 96.3171169788039 2010 100.000313136848 2011 103.613798354335 2012 102.989060131685 2013 105.957435880967 2014 106.43454790372 2015 104.507020736724 2016 104.261805647953 2017 106.985210071153 2018 110.546437717009 2019 115.256023866118 2020 117.358734412607 2021 122.876654005736 2022 127.884868636335 2023 133.941276108315