Year	Number
1996	28.1407032012939
1998	28
2000	29.8507461547852
2002	36.3184089660645
2003	33.8308448791504
2004	36.0576934814453
2005	30.1435413360596
2006	27.7511959075928
2007	26.3157901763916
2008	25.9615383148193
2009	31.7535552978516
2010	34.5971565246582
2011	32.3943672180176
2012	34.2723007202148
2013	34.2723007202148
2014	34.1346168518066
2015	37.1428565979004
2016	33.8095245361328
2017	31.9047622680664
2018	31.4285717010498
2019	32.3809509277344
2020	39.523811340332
2021	32.3809509277344
2022	32.5471687316895