Year base year varies by country 1995 2.4080151993781356 1996 4.692207589262454 1997 5.7402770251981785 1998 7.300220762466339 1999 9.249459748394674 2000 16.565521729155172 2001 33.05044105902642 2002 38.538301077261835 2003 42.672825925183105 2004 47.00297627820832 2005 53.944352437773446 2006 58.40758389294996 2007 61.58078674332083 2008 67.42654046226826 2009 72.21934887179663 2010 78.93956103854906 2011 85.62627376686865 2012 92.66819714337169 2013 95.70978270870825 2014 97.33676284254385 2015 100 2016 101.27016446817365 2017 104.24199677188788 2018 106.31507019822799 2019 108.22161332815969 2020 109.16242120429462 2021 115.31599667971555 2022 129.84296864703134 2023 140.18249186865023