Year Number 2004 60.1990051269531 2005 59.8039207458496 2006 55.3921585083008 2007 53.3980598449707 2008 53.3980598449707 2009 52.1531105041504 2010 50.7177047729492 2011 50.2369651794434 2012 45.0236968994141 2013 45.0236968994141 2014 28.365385055542 2015 30 2016 26.6666660308838 2017 27.619047164917 2018 24.761905670166 2019 24.2857151031494 2020 39.523811340332 2021 43.3333320617676 2022 43.3962249755859