Year	Number
2004-01-01	1092291
2005-01-01	1133278
2006-01-01	1172721
2007-01-01	1209526
2008-01-01	1281452
2009-01-01	1290579
2010-01-01	1327683
2011-01-01	1403808
2012-01-01	1497074
2013-01-01	1865200
2014-01-01	2223267
2015-01-01	2358750
2016-01-01	3407793