Year	Number
2004-01-01	167507
2005-01-01	191210
2006-01-01	222158
2007-01-01	253106
2008-01-01	394234
2009-01-01	440218
2010-01-01	494789
2011-01-01	554081
2012-01-01	612010
2013-01-01	721391
2014-01-01	786946
2015-01-01	795795
2016-01-01	898231
2017-01-01	990537