Year % 1994 72.36467 1999 36.69609 2000 32.42388 2001 40.75766 2002 40.77869 2004 38.82214 2005 43.71869 2006 43.76164 2007 43.97441 2008 44.78135 2009 45.85821 2010 47.94851 2011 47.40145 2012 49.86496 2013 48.72598 2014 48.4988 2015 46.90623 2016 48.37237 2018 58.85765 2019 61.34761 2020 57.45309 2021 57.00632