Year	Number
1996	41.5300559997559
1998	44.2622947692871
2000	42.0765037536621
2002	34.5945930480957
2003	35.6756744384766
2004	38.3084564208984
2005	33.3333320617676
2006	32.1951217651367
2007	34.4660186767578
2008	38.3495140075684
2009	34.4497604370117
2010	32.5358848571777
2011	35.5450248718262
2012	36.9668235778809
2013	36.4928894042969
2014	35.5769233703613
2015	28.5714282989502
2016	30.9523811340332
2017	24.761905670166
2018	30
2019	35.238094329834
2020	40.9523811340332
2021	42.8571434020996
2022	45.7547187805176