Year	Number
1996	15.8469944000244
1998	9.28961753845215
2000	4.37158489227295
2002	15.1351346969604
2003	16.2162170410156
2004	21.8905467987061
2005	14.2156858444214
2006	20
2007	22.8155345916748
2008	25.2427177429199
2009	32.5358848571777
2010	30.6220092773438
2011	34.5971565246582
2012	31.7535552978516
2013	30.3317527770996
2014	37.019229888916
2015	40.476188659668
2016	38.5714302062988
2017	41.4285697937012
2018	42.3809509277344
2019	35.238094329834
2020	31.4285717010498
2021	34.2857131958008
2022	35.8490562438965