Year base year varies by country 1990 0.0602823113846265 1991 0.0803764151795019 1992 0.108426918010378 1993 0.265585035126545 1994 1.42954790516703 1995 4.85662884104064 1996 4.91797342547692 1997 4.99143318314874 1998 5.86630617692957 1999 10.1270152752855 2000 16.2784500750664 2001 22.7133585425982 2002 29.5912830240946 2003 35.8995462930424 2004 40.5083041437549 2005 46.8032184278123 2006 52.8637463713946 2007 56.2603484650546 2008 64.9925977264533 2009 69.2064735519374 2010 74.1869549245245 2011 84.4577284656796 2012 93.5244350427556 2013 93.8833501834255 2014 95.370168743931 2015 100 2016 124.06936382588 2017 158.988817218312 2018 167.988528302193 2019 176.688500627301 2020 256.58307633809 2021 412.307116961645 2022 593.264898141245 2023 903.600915010263