Year	Number
1996	67
1998	68.1592025756836
2000	72.6368179321289
2002	74.6268692016602
2003	74.6268692016602
2004	79.3269195556641
2005	74.038459777832
2006	76.4423065185547
2007	75.4807662963867
2008	74.038459777832
2009	72.9857788085938
2010	74.8815155029297
2011	76.0563354492188
2012	77.4647903442383
2013	76.5258178710938
2014	75.8620681762695
2015	76.3546829223633
2016	76.3546829223633
2017	76.3546829223633
2018	75.2427215576172
2019	74.3961334228516
2020	74.8792266845703
2021	75.8454132080078
2022	75.3623199462891