Year	Number
1996	416.61
1997	451.09
1998	429.68
1999	397.75
2000	384.14
2001	412.04
2002	431.7
2003	541.02
2004	512.99
2005	566.63
2006	699.01
2007	677.15
2008	695.15
2009	655.49
2010	712.87
2011	630.25
2012	628.19
2013	577.45
2014	609.13
2015	586.23
2016	596.93
2017	566.52
2018	549.24
2019	561.8
2020	584.6