Year	Number
1996	764.15
1997	923.2
1998	887.79
1999	930.82
2000	1039.07
2001	1022.04
2002	1052.92
2003	1152.69
2004	1077.59
2005	1285.6
2006	1388.74
2007	1412.32
2008	1616.91
2009	1636.19
2010	1475.25
2011	1263.67
2012	1310.94
2013	1198.12
2014	1241.07
2015	977.41
2016	860.3
2017	830.28
2018	687.51
2019	602.42
2020	657.27