Year Number 1996 100 1998 100 2000 100 2002 100 2003 99.4974899291992 2004 83.0097122192383 2005 95.6310653686523 2006 95.6521759033203 2007 66.6666641235352 2008 55.288459777832 2009 53.0805702209473 2010 57.3459701538086 2011 54.9763031005859 2012 48.8151664733887 2013 65.4028472900391 2014 88.5714263916016 2015 71.9047622680664 2016 72.8571395874023 2017 69.0476226806641 2018 63.2075462341309 2019 60.8490562438965 2020 72.6415100097656 2021 81.6037750244141 2022 87.7358474731445