Year	Number
1996	30.5
1998	33.3333320617676
2000	39.8009948730469
2002	40.7960205078125
2003	26.8656711578369
2004	32.6923065185547
2005	44.230770111084
2006	34.1346168518066
2007	33.6538467407227
2008	32.6923065185547
2009	30.8056869506836
2010	29.8578205108643
2011	29.1079807281494
2012	15.4929580688477
2013	15.023473739624
2014	29.0640392303467
2015	30.5418720245361
2016	32.019702911377
2017	32.019702911377
2018	32.5242729187012
2019	36.2318840026855
2020	37.6811599731445
2021	46.3768119812012
2022	40.5797119140625