Year	Number
1996	83.0601119995117
1998	72.6775970458984
2000	74.3169403076172
2002	72.9729766845703
2003	71.8918914794922
2004	70.6467666625977
2005	70.0980377197266
2006	63.9024391174316
2007	62.1359214782715
2008	65.5339813232422
2009	63.6363639831543
2010	62.6794242858887
2011	61.6113739013672
2012	60.6635055541992
2013	63.0331764221191
2014	59.6153831481934
2015	56.1904754638672
2016	57.1428565979004
2017	56.1904754638672
2018	56.6666679382324
2019	58.5714302062988
2020	53.8095245361328
2021	50
2022	48.113208770752