Year base year varies by country 1990 46.7913344879225 1991 49.4186023255572 1992 51.3075469164704 1993 54.0270080383207 1994 57.4242129922011 1995 59.3627611034612 1996 61.2976822419676 1997 63.5682941291167 1998 67.7593202959149 1999 69.2432905138259 2000 69.9607208026522 2001 73.8988500811783 2002 77.1760336164623 2003 79.5291665376124 2004 81.7638643095843 2005 85.9072458683573 2006 88.9005517213753 2007 93.4939480775572 2008 97.4790799341005 2009 99.1394220436433 2010 97.9265438600508 2011 101.849162176143 2012 102.036597940594 2013 100 2014 103.958897410193 2015 111.060627987948 2016 109.946912346958 2017 106.452616082952 2018 110.154555460963 2019 116.867602634693 2020 115.849306421497 2021 110.068231312115 2022 113.824686416737