Year	Number
1996	36.0655746459961
1998	49.1803283691406
2000	49.7267761230469
2002	41.6216201782227
2003	43.7837829589844
2004	47.2636833190918
2005	42.1568641662598
2006	37.073169708252
2007	43.6893196105957
2008	42.2330093383789
2009	49.7607650756836
2010	42.5837326049805
2011	41.7061614990234
2012	29.3838863372803
2013	24.1706161499023
2014	24.0384616851807
2015	28.0952377319336
2016	33.3333320617676
2017	32.3809509277344
2018	37.6190490722656
2019	40.9523811340332
2020	36.1904754638672
2021	34.761905670166
2022	33.9622650146484