Year	Number
1996	70
1998	71.6417922973633
2000	70.1492538452148
2002	72.6368179321289
2003	71.6417922973633
2004	71.1538467407227
2005	72.1153869628906
2006	74.038459777832
2007	72.1153869628906
2008	71.1538467407227
2009	72.0379180908203
2010	72.0379180908203
2011	69.9530487060547
2012	71.8309860229492
2013	71.3615036010742
2014	72.4137954711914
2015	73.3990173339844
2016	73.8916244506836
2017	73.8916244506836
2018	73.3009719848633
2019	73.9130401611328
2020	73.4299545288086
2021	74.8792266845703
2022	75.8454132080078