Year	Number
1996	1909.71
1997	1753.32
1998	1764.7
1999	1800.04
2000	1676.87
2001	1657.78
2002	1680.94
2003	1706.37
2004	1841.32
2005	2029.68
2006	1917.22
2007	2465.08
2008	2342.77
2009	2679.13
2010	2576.55
2011	2436.75
2012	2632.57
2013	2654.65
2014	2627.73
2015	2523.38
2016	2494.79
2017	2898.18
2018	3287.76
2019	4051.05
2020	4118.23