Year	Number
1996	121.87
1997	117.75
1998	93.7
1999	160.92
2000	172.38
2001	196.66
2002	191.96
2003	265.05
2004	263.63
2005	299.49
2006	439.65
2007	400.36
2008	401.19
2009	488.18
2010	550.49
2011	591.16
2012	636
2013	661.46
2014	737.52
2015	884.93
2016	1050.04
2017	1334
2018	1648.11
2019	2192.52
2020	2701.5