Year | Value | 2021 | 45.101387054161 | 2020 | 45.066357331572 | 2019 | 44.795990752972 | 2018 | 44.715984147952 | 2017 | 43.824306472919 | 2016 | 44.610303830911 | 2015 | 43.857331571995 | 2014 | 43.966314398943 | 2013 | 44.138044914135 | 2012 | 43.989431968296 | 2011 | 44.111624834874 | 2010 | 44.77212681638 | 2009 | 45.033025099075 | 2008 | 45.089167767503 | 2007 | 45.142007926024 | 2006 | 45.57463672391 | 2005 | 45.673712021136 | 2004 | 45.947820343461 | 2003 | 45.977542932629 | 2002 | 45.875165125495 | 2001 | 45.799207397622 | 2000 | 45.891677675033 |
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