Year	Number
1996	53.5
1998	49.7512435913086
2000	51.7412948608398
2002	46.766170501709
2003	44.7761192321777
2004	47.5961532592773
2005	41.8269233703613
2006	34.1346168518066
2007	35.5769233703613
2008	35.0961532592773
2009	38.8625602722168
2010	36.0189590454102
2011	35.6807518005371
2012	34.2723007202148
2013	33.8028182983398
2014	33.0049247741699
2015	31.0344829559326
2016	34.4827575683594
2017	34.4827575683594
2018	33.4951438903809
2019	33.8164253234863
2020	33.8164253234863
2021	33.3333320617676
2022	34.2995185852051