Year	Number
1996	58.7939682006836
1998	58
2000	60.6965179443359
2002	57.2139320373535
2003	48.756217956543
2004	45.1923065185547
2005	44.4976081848145
2006	44.9760780334473
2007	43.0622024536133
2008	40.8653831481934
2009	36.4928894042969
2010	37.9146919250488
2011	39.4366188049316
2012	42.7230033874512
2013	42.7230033874512
2014	36.0576934814453
2015	39.0476188659668
2016	43.3333320617676
2017	45.238094329834
2018	44.2857131958008
2019	49.0476188659668
2020	48.0952377319336
2021	47.1428565979004
2022	44.3396224975586