Year	Number
2004-01-01	54780377
2005-01-01	60163032
2006-01-01	65719475
2007-01-01	70681819
2008-01-01	72552069
2009-01-01	73222075
2010-01-01	76013730
2011-01-01	74319896
2012-01-01	78338880
2013-01-01	80496062
2014-01-01	82354465
2015-01-01	84017943
2016-01-01	85849622