Year	Number
1996	61.9565200805664
1998	65.2173919677734
2000	52.1739120483398
2002	40.5405387878418
2003	38.9189186096191
2004	40.7960205078125
2005	34.3137245178223
2006	22.5490188598633
2007	21.8446598052979
2008	21.8446598052979
2009	18.1818180084229
2010	22.4880390167236
2011	28.4360198974609
2012	29.3838863372803
2013	33.6492881774902
2014	31.25
2015	23.8095245361328
2016	28.0952377319336
2017	27.1428565979004
2018	30
2019	33.8095245361328
2020	32.3809509277344
2021	39.523811340332
2022	48.5849075317383