Year	Number
1996	6576.37
1997	6940.03
1998	6928.39
1999	6932.89
2000	7504.8
2001	7767.57
2002	7849.93
2003	8022.86
2004	8726.82
2005	9122.68
2006	9363.27
2007	9322.12
2008	9545.18
2009	9892.75
2010	9896.47
2011	10202.9
2012	10425.9
2013	10657.92
2014	11068.94
2015	10903.86
2016	11111.14
2017	10769.6
2018	10848.8
2019	11036.74
2020	11328.41