Year base year varies by country 1990 15.530767302578 1991 22.9320569418753 1992 45.2756360039794 1993 56.478194685758 1994 60.9251279361509 1995 67.4313257404251 1996 68.603356178359 1997 76.5248260157172 1998 79.599530977086 1999 80.2465561351339 2000 78.5710215667211 2001 77.3726944169649 2002 81.1803501078928 2003 82.464016414526 2004 81.4458648434637 2005 80.5807411199835 2006 81.2904459944069 2007 83.8372136612719 2008 90.1529089854653 2009 99.4247218746476 2010 100 2011 102.96508062084 2012 110.673099969758 2013 113.526751724773 2014 113.64627112602 2015 117.437265765136 2016 118.460491027314 2017 121.716420650649 2018 128.438194280971 2019 133.69751120119 2020 248.065092840466 2021 620.164510241019 2022 1315.6757774119 2023 3538.48997527822