Year	Number
1996	74
1998	72.6368179321289
2000	72.1393051147461
2002	72.1393051147461
2003	70.6467666625977
2004	71.1538467407227
2005	64.9038467407227
2006	69.2307662963867
2007	68.2692337036133
2008	67.3076934814453
2009	71.5639801025391
2010	72.9857788085938
2011	74.1784057617188
2012	73.7089233398438
2013	73.2394332885742
2014	72.4137954711914
2015	72.9064025878906
2016	72.9064025878906
2017	74.3842391967773
2018	74.7572784423828
2019	73.4299545288086
2020	73.4299545288086
2021	73.4299545288086
2022	74.8792266845703