Year	Number
1996	37
1998	41.7910461425781
2000	41.7910461425781
2002	26.8656711578369
2003	21.3930339813232
2004	19.230770111084
2005	25.9615383148193
2006	25.480770111084
2007	25
2008	25.480770111084
2009	27.014217376709
2010	23.6966819763184
2011	24.8826293945313
2012	16.4319248199463
2013	12.6760559082031
2014	14.7783250808716
2015	21.1822662353516
2016	23.1527099609375
2017	23.1527099609375
2018	21.3592224121094
2019	20.7729473114014
2020	18.8405799865723
2021	21.2560386657715
2022	21.7391300201416