| Year | Value | | 2021 | 343.42453017829 | | 2020 | 332.05294505808 | | 2019 | 356.87619818961 | | 2018 | 391.29704517714 | | 2017 | 358.47920206372 | | 2016 | 375.92731266806 | | 2015 | 382.99487230533 | | 2014 | 351.25559293246 | | 2013 | 377.31019772406 | | 2012 | 332.23833000972 | | 2011 | 333.95849156189 | | 2010 | 273.76319165296 | | 2009 | 241.22431110048 | | 2008 | 247.8357872388 | | 2007 | 201.68394048896 | | 2006 | 182.52997646994 | | 2005 | 150.06457126932 | | 2004 | 144.59007607982 | | 2003 | 57.367761952092 | | 2002 | 131.9041031814 | | 2001 | 156.88914464449 | | 2000 | 176.23924639368 |
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