Year Number 1996 0 1998 0 2000 0 2002 1.05820107460022 2003 9.04522609710693 2004 7.28155326843262 2005 11.1650485992432 2006 17.3913040161133 2007 14.9758453369141 2008 18.75 2009 20.8530807495117 2010 25.5924167633057 2011 20.8530807495117 2012 21.8009471893311 2013 21.3270149230957 2014 23.3333339691162 2015 19.5238094329834 2016 21.9047622680664 2017 19.5238094329834 2018 21.2264156341553 2019 20.2830181121826 2020 15.0943393707275 2021 13.2075471878052 2022 14.1509437561035