Year base year varies by country 1990 46.9449484954342 1991 45.0822758670813 1992 45.184639511351 1993 44.5331494029402 1994 51.0523401698361 1995 54.5083635831275 1996 54.6984370547377 1997 55.5496540500468 1998 59.9604721355856 1999 70.3880926179316 2000 69.8110699090614 2001 72.5766723855375 2002 74.7953311654443 2003 75.9058389994757 2004 75.9746465721331 2005 78.815631411687 2006 78.2932202663939 2007 80.2445607023743 2008 87.5948023246529 2009 89.701899560814 2010 93.0922893561271 2011 99.3648522881927 2012 105.151860776668 2013 102.91299766421 2014 102.27453888171 2015 100 2016 102.604299192266 2017 104.057481090869 2018 105.175023984024 2019 105.714467213248 2020 112.549537353455 2021 112.369207519033 2022 118.986771024614 2023 121.364180847585