Year base year varies by country 1990 52.5535414224489 1991 55.09012027435 1992 56.486878727168 1993 55.8117570840619 1994 57.1346614409388 1995 57.8839865234141 1996 59.9477004244302 1997 60.7622948120391 1998 62.7133733136565 1999 63.8530608458973 2000 68.8091533134494 2001 73.0197435626167 2002 73.1708105250734 2003 71.580449732223 2004 74.2627311086272 2005 76.4190121787332 2006 79.2482526928969 2007 85.0543062393223 2008 91.2340848658036 2009 90.190451565644 2010 95.2236175373338 2011 94.9199451495999 2012 95.9571751196247 2013 98.108708933943 2014 97.6724870133222 2015 96.9575499694111 2016 96.382087981939 2017 98.4750669777893 2018 100 2019 102.312470615646 2020 101.42547177151 2021 101.027429581392 2022 104.466444618809 2023 108.679726912969