Year Number 1996 71.0382537841797 1998 66.6666641235352 2000 63.3879776000977 2002 64.8648681640625 2003 56.2162170410156 2004 48.2587051391602 2005 49.0196075439453 2006 44.3902435302734 2007 42.7184448242188 2008 27.1844654083252 2009 19.6172256469727 2010 29.6650714874268 2011 23.6966819763184 2012 29.3838863372803 2013 24.1706161499023 2014 17.3076915740967 2015 17.619047164917 2016 19.0476188659668 2017 13.3333330154419 2018 11.9047622680664 2019 20 2020 20 2021 38.5714302062988 2022 22.6415100097656