Year | Value | 2022 | 44.839682718378 | 2021 | 44.983057604354 | 2020 | 44.784526424185 | 2019 | 45.799684268355 | 2018 | 45.682251571833 | 2017 | 45.329926621058 | 2016 | 45.455774475786 | 2015 | 44.648500636739 | 2014 | 44.161867716924 | 2013 | 43.620340672262 | 2012 | 43.172242414189 | 2011 | 42.331397041433 | 2010 | 41.637257704186 | 2009 | 41.252385710735 | 2008 | 41.021568874946 | 2007 | 40.543404156282 | 2006 | 40.023247216172 | 2005 | 39.535908244462 | 2004 | 38.875055064304 | 2003 | 38.234288073069 | 2002 | 37.97994342883 | 2001 | 37.632924505186 | 2000 | 37.210654418299 | 1999 | 36.966316854708 | 1998 | 36.739821529257 | 1997 | 36.712172908487 | 1996 | 36.477336126313 | 1995 | 36.233214185687 | 1994 | 36.105588413339 | 1993 | 36.010825205169 | 1992 | 35.916872807795 | 1991 | 35.840204430457 |
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