Year | Value | 2022 | 169.94296071889 | 2021 | 160.95649049113 | 2020 | 154.38084795942 | 2019 | 151.78508531238 | 2018 | 147.81568207913 | 2017 | 145.47046990486 | 2016 | 139.63280851855 | 2015 | 133.05277308871 | 2014 | 131.21190914217 | 2013 | 114.19792148089 | 2012 | 106.73820858312 | 2011 | 101.1944757245 | 2010 | 100 | 2009 | 98.530881208886 | 2008 | 95.179366099333 | 2007 | 87.113563907832 | 2006 | 86.285296147115 | 2005 | 80.870783182279 | 2004 | 78.604214363628 | 2003 | 80.262769048125 | 2002 | 77.075904642345 | 2001 | 75.319589620754 | 2000 | 72.537863665252 | 1999 | 70.286311324712 | 1998 | 71.294560569353 | 1997 | 72.664431123622 | 1996 | 71.512146272604 | 1995 | 68.944022056772 | 1994 | 57.844086603617 | 1993 | 46.434627826119 | 1992 | 47.829015079345 | 1991 | 48.328542820611 | 1990 | 49.701477962249 | 1989 | 49.707607136989 | 1988 | 49.367437938949 | 1987 | 51.405388539818 | 1986 | 55.266768625675 | 1985 | 54.053192027263 | 1984 | 48.950654056666 | 1983 | 47.737077458254 | 1982 | 41.650806941974 | 1981 | 36.762790087257 | 1980 | 36.775048436736 |
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