Year	Number
1996	54.773868560791
1998	55
2000	58.7064666748047
2002	57.7114410400391
2003	55.7213935852051
2004	55.769229888916
2005	50.2392349243164
2006	49.7607650756836
2007	50.2392349243164
2008	49.038459777832
2009	36.4928894042969
2010	30.3317527770996
2011	29.577465057373
2012	29.1079807281494
2013	30.046947479248
2014	35.0961532592773
2015	38.0952377319336
2016	30.4761905670166
2017	29.5238094329834
2018	30.4761905670166
2019	22.8571434020996
2020	28.0952377319336
2021	27.619047164917
2022	24.5283012390137