Year base year varies by country 1990 40.9089328905267 1991 41.5521815521583 1992 38.6789075013655 1993 42.0872096794777 1994 47.6712575171187 1995 49.658809476185 1996 50.5772706109118 1997 48.7850308174479 1998 47.8793445849662 1999 49.9396798330797 2000 55.9539919151885 2001 57.5173171488714 2002 54.5307103727749 2003 60.2447443564821 2004 65.5970228177818 2005 74.3354814844711 2006 75.6209000403127 2007 85.2639639995929 2008 105.550410542348 2009 76.384940593441 2010 86.1112918286554 2011 99.6563424993 2012 99.9998556477841 2013 101.65376437606 2014 100.722554092075 2015 91.9258347558302 2016 91.2441899378154 2017 98.7386779732585 2018 101.391842796354 2019 97.5264996935728 2020 93.8284087618424 2021 111.743404251733 2022 135.002261257104 2023 123.731915919202