Year	Number
2004-01-01	1994
2005-01-01	2088
2006-01-01	2178
2007-01-01	2330
2008-01-01	2309
2009-01-01	2183
2010-01-01	2205
2011-01-01	2173
2012-01-01	2170
2013-01-01	2162
2014-01-01	2100
2015-01-01	2077
2016-01-01	2029
2017-01-01	2020