Year	Number
1996	392.39
1997	409.19
1998	360.51
1999	362.13
2000	360.08
2001	404.9
2002	441.14
2003	423.62
2004	449.69
2005	457.17
2006	478.73
2007	544.75
2008	590.89
2009	699.14
2010	747.14
2011	827.56
2012	786.89
2013	853.29
2014	926.75
2015	994.46
2016	1093.03
2017	1178.07
2018	1306.44
2019	1427.56
2020	1753.08