Year base year varies by country 1994 13.115840488724196 1995 36.57949417430098 1996 43.32139310476412 1997 50.62268856061812 1998 56.80333434318495 1999 56.55569582346125 2000 59.26944608473457 2001 62.517040323383235 2002 62.81582054595177 2003 63.316670847641234 2004 68.67375740795553 2005 70.75729687923906 2006 74.31073088659184 2007 76.09708146290579 2008 80.01640362132704 2009 88.08285990470372 2010 94.55758610130118 2011 99.24959011912024 2012 100 2013 105.86374636163261 2014 109.46514985083775 2015 113.68924260606441 2016 113.9684300745618 2017 115.50166851941457 2018 117.33995101524108 2019 120.0600935653413 2020 120.9379897572484 2021 127.53678342842636 2022 136.93715711403792 2023 140.38938456909054