Year	Number
1996	264.21
1997	298.25
1998	302.08
1999	281.43
2000	345.72
2001	304.03
2002	407.82
2003	374.02
2004	385.09
2005	451.82
2006	443.74
2007	487.38
2008	543.8
2009	593.86
2010	672.48
2011	872
2012	814.38
2013	910.28
2014	1004.35
2015	1340.01
2016	1644.81
2017	1938.59
2018	2105.76
2019	3457.15
2020	3071.81