Year	Number
2004-01-01	1336
2005-01-01	1294
2006-01-01	1257
2007-01-01	1232
2008-01-01	1197
2009-01-01	1157
2010-01-01	1138
2011-01-01	1121
2012-01-01	1102
2013-01-01	1078
2014-01-01	1047
2015-01-01	1023
2016-01-01	976
2017-01-01	917