Year	Number
1996	41
1998	34.825870513916
2000	32.3383102416992
2002	26.8656711578369
2003	28.3582096099854
2004	28.8461532592773
2005	25
2006	17.7884616851807
2007	13.942307472229
2008	14.9038457870483
2009	13.7440757751465
2010	13.2701425552368
2011	41.3145523071289
2012	49.7652587890625
2013	52.1126747131348
2014	59.6059112548828
2015	61.0837440490723
2016	63.5467987060547
2017	57.6354675292969
2018	59.7087364196777
2019	60.386474609375
2020	59.9033813476563
2021	58.4541053771973
2022	47.8260879516602