Year Number 1996 100 1998 100 2000 100 2002 100 2003 83.0845794677734 2004 66.8269195556641 2005 82.2966537475586 2006 86.6028671264648 2007 81.339714050293 2008 63.9423065185547 2009 60.6635055541992 2010 63.5071105957031 2011 62.4413146972656 2012 61.5023460388184 2013 62.4413146972656 2014 63.9423065185547 2015 60.476188659668 2016 77.6190490722656 2017 77.6190490722656 2018 79.0476226806641 2019 81.9047622680664 2020 83.3333358764648 2021 82.3809509277344 2022 84.4339599609375