Year	Number
1996	25.1256275177002
1998	20
2000	10.945273399353
2002	7.46268653869629
2003	7.46268653869629
2004	6.73076915740967
2005	4.30622005462646
2006	4.30622005462646
2007	4.78468894958496
2008	5.28846168518066
2009	9.00473976135254
2010	9.00473976135254
2011	8.45070457458496
2012	12.6760559082031
2013	19.2488269805908
2014	33.1730766296387
2015	29.5238094329834
2016	28.0952377319336
2017	29.0476188659668
2018	30.4761905670166
2019	27.619047164917
2020	27.619047164917
2021	27.1428565979004
2022	35.3773574829102