Year Number 1996 100 1998 100 2000 100 2002 100 2003 97.0149230957031 2004 75 2005 63.9423065185547 2006 86.0576934814453 2007 79.8076934814453 2008 85.5769195556641 2009 78.6729888916016 2010 78.6729888916016 2011 89.6713638305664 2012 88.2629089355469 2013 88.2629089355469 2014 94.0886688232422 2015 95.0738906860352 2016 95.5665054321289 2017 95.5665054321289 2018 99.5145645141602 2019 95.6521759033203 2020 96.1352691650391 2021 97.5845413208008 2022 96.1352691650391