Year	Number
1996	38.8297882080078
1998	40.4255332946777
2000	29.100528717041
2002	33.862434387207
2003	40.2010040283203
2004	39.8058242797852
2005	33.4951438903809
2006	31.4009666442871
2007	35.7487907409668
2008	35.0961532592773
2009	30.3317527770996
2010	32.2274894714355
2011	36.4928894042969
2012	37.9146919250488
2013	37.4407577514648
2014	35.238094329834
2015	34.761905670166
2016	34.2857131958008
2017	32.3809509277344
2018	33.0188674926758
2019	33.4905662536621
2020	51.4150924682617
2021	42.4528312683105
2022	47.6415100097656