Year	Number
1996	37.7659568786621
1998	43.6170196533203
2000	31.2169303894043
2002	41.798942565918
2003	40.7035179138184
2004	36.4077682495117
2005	35.9223289489746
2006	29.468599319458
2007	28.019323348999
2008	30.769229888916
2009	35.0710906982422
2010	33.1753540039063
2011	36.4928894042969
2012	36.9668235778809
2013	36.4928894042969
2014	42.3809509277344
2015	42.3809509277344
2016	38.0952377319336
2017	38.0952377319336
2018	35.8490562438965
2019	34.4339637756348
2020	48.113208770752
2021	46.2264137268066
2022	46.698112487793