Year	Number
1996	46
1998	42.2885589599609
2000	31.8407955169678
2002	35.8208961486816
2003	37.8109436035156
2004	34.1346168518066
2005	35.5769233703613
2006	37.5
2007	42.788459777832
2008	44.711540222168
2009	43.6018943786621
2010	45.971565246582
2011	46.0093879699707
2012	44.6009407043457
2013	44.6009407043457
2014	45.320198059082
2015	44.8275871276855
2016	44.3349761962891
2017	44.3349761962891
2018	48.5436897277832
2019	48.3091773986816
2020	48.3091773986816
2021	46.8599052429199
2022	47.8260879516602