Year Number 1996 58.5106391906738 1998 62.2340431213379 2000 56.0846557617188 2002 61.9047622680664 2003 53.2663307189941 2004 62.1359214782715 2005 52.4271850585938 2006 58.937198638916 2007 51.6908226013184 2008 52.8846168518066 2009 41.7061614990234 2010 39.3364944458008 2011 24.1706161499023 2012 3.79146909713745 2013 6.16113758087158 2014 6.66666650772095 2015 7.61904764175415 2016 8.5714282989502 2017 6.1904764175415 2018 4.71698093414307 2019 3.77358484268188 2020 3.77358484268188 2021 2.35849046707153 2022 1.41509437561035