Year	Number
2004-01-01	1092291
2005-01-01	1133246
2006-01-01	1172686
2007-01-01	1209482
2008-01-01	1281402
2009-01-01	1290528
2010-01-01	1327630
2011-01-01	1403769
2012-01-01	1497074
2013-01-01	1865114
2014-01-01	2223161
2015-01-01	2358573
2016-01-01	3407148