Year	Number
2004-01-01	1228
2005-01-01	1223
2006-01-01	1226
2007-01-01	1264
2008-01-01	1300
2009-01-01	1293
2010-01-01	1329
2011-01-01	1337
2012-01-01	1320
2013-01-01	1300
2014-01-01	1292
2015-01-01	1279
2016-01-01	1242