| Year | Value | | 2022 | 199.26858953079 | | 2021 | 185.89218070077 | | 2020 | 181.882451026 | | 2019 | 176.04936704056 | | 2018 | 171.14172734523 | | 2017 | 166.77877473559 | | 2016 | 158.52031485061 | | 2015 | 149.96287100129 | | 2014 | 142.02416598956 | | 2013 | 137.78626463097 | | 2012 | 131.34358747639 | | 2011 | 116.56434961745 | | 2010 | 100 | | 2009 | 96.175529218411 | | 2008 | 85.098092505135 | | 2007 | 75.945955154677 | | 2006 | 71.553627951572 | | 2005 | 66.678946148045 | | 2004 | 61.484305392365 | | 2003 | 59.278386250326 | | 2002 | 54.543730530828 | | 2001 | 54.701000563468 | | 2000 | 53.699438776652 | | 1999 | 51.937700756182 | | 1998 | 49.100957278134 | | 1997 | 49.067196999516 | | 1996 | 45.361598307744 | | 1995 | 42.318221377066 | | 1994 | 39.716720505221 | | 1993 | 36.094047615376 |
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