Year	Number
1996	49.4623641967773
1998	37.9679145812988
2000	28.7234039306641
2002	26.4550266265869
2003	13.2275133132935
2004	9.85221672058105
2005	9.26829242706299
2006	8.78048801422119
2007	12.1359224319458
2008	12.62135887146
2009	11.9617223739624
2010	10.9523811340332
2011	16.5876770019531
2012	21.8009471893311
2013	25.5924167633057
2014	42.3076934814453
2015	39.523811340332
2016	33.8095245361328
2017	36.6666679382324
2018	34.2857131958008
2019	31.9047622680664
2020	32.3809509277344
2021	40.476188659668
2022	42.4528312683105