Year	Number
1996	33.5106391906738
1998	52.6595726013184
2000	49.2063484191895
2002	58.7301597595215
2003	58.7939682006836
2004	48.0582542419434
2005	52.9126205444336
2006	52.1739120483398
2007	69.0821228027344
2008	68.2692337036133
2009	72.511848449707
2010	63.9810409545898
2011	36.0189590454102
2012	34.1232223510742
2013	34.5971565246582
2014	47.6190490722656
2015	43.8095245361328
2016	47.6190490722656
2017	47.1428565979004
2018	44.8113212585449
2019	41.5094337463379
2020	38.2075462341309
2021	38.2075462341309
2022	32.5471687316895