Year	Number
1996	38.2513656616211
1998	32.2404365539551
2000	32.2404365539551
2002	45.9459457397461
2003	42.1621627807617
2004	35.8208961486816
2005	43.1372566223145
2006	31.7073173522949
2007	37.3786392211914
2008	28.6407775878906
2009	22.0095691680908
2010	16.7464122772217
2011	14.6919431686401
2012	12.7962083816528
2013	12.3222751617432
2014	8.17307662963867
2015	7.61904764175415
2016	9.5238094329834
2017	10.4761905670166
2018	9.5238094329834
2019	10
2020	13.3333330154419
2021	13.8095235824585
2022	14.6226415634155