Year	Number
1996	65.4255294799805
1998	69.1489334106445
2000	64.0211639404297
2002	70.3703689575195
2003	70.3517608642578
2004	62.1359214782715
2005	65.0485458374023
2006	78.7439651489258
2007	72.4637680053711
2008	72.5961532592773
2009	85.3080596923828
2010	72.9857788085938
2011	69.1943130493164
2012	70.1421813964844
2013	52.1327018737793
2014	45.238094329834
2015	40.476188659668
2016	20
2017	25.7142848968506
2018	28.7735843658447
2019	30.1886787414551
2020	15.0943393707275
2021	17.9245281219482
2022	15.5660381317139