Year	Number
1996	33621.11
1997	37424.8
1998	43775.33
1999	45192.17
2000	53284.78
2001	70675.54
2002	75171.18
2003	87849.66
2004	120946.86
2005	165403.81
2006	192392.77
2007	213167.91
2008	247545.45
2009	285495.89
2010	308768.95
2011	323135.69
2012	328127.24
2013	356356.43
2014	385178.3
2015	405811.76
2016	436078.81
2017	468045.33
2018	531109.87
2019	610458.55
2020	669744.3