Year	Number
1996	339.74
1997	411.93
1998	328.14
1999	332.08
2000	292.69
2001	355.23
2002	371.27
2003	292.97
2004	301.25
2005	441.93
2006	386.82
2007	468.24
2008	640.09
2009	701.59
2010	792.29
2011	1242.74
2012	1140.12
2013	1177.49
2014	1148.74
2015	1370.7
2016	1337.34
2017	1518.82
2018	1401.28
2019	1525.75
2020	1469.35