Year	Number
2004-01-01	922
2005-01-01	954
2006-01-01	1021
2007-01-01	1127
2008-01-01	1160
2009-01-01	1185
2010-01-01	1248
2011-01-01	1316
2012-01-01	1372
2013-01-01	1298
2014-01-01	1285
2015-01-01	1307
2016-01-01	1271