Year | Value | 2021 | 65.548004090829 | 2020 | 70.359180556179 | 2019 | 53.879039356218 | 2018 | 52.214282008466 | 2017 | 55.248518820306 | 2016 | 52.065656169396 | 2015 | 51.278403267865 | 2014 | 50.837954434401 | 2013 | 62.399276793737 | 2012 | 54.852339814226 | 2011 | 54.562570981641 | 2010 | 57.494286618762 | 2009 | 58.146920567539 | 2008 | 48.426937619566 | 2007 | 48.482372477846 | 2006 | 50.512222271528 | 2005 | 56.215811675058 | 2004 | 56.500596303298 | 2003 | 57.911223409082 | 2002 | 62.446945384262 | 2001 | 35.370552538118 | 2000 | 27.376408936306 | 1999 | 28.190663456159 | 1998 | 24.652933888038 |
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