Year	Number
2004-01-01	14400000
2005-01-01	18820000
2006-01-01	22890000
2007-01-01	20567490
2008-01-01	23579270
2009-01-01	24901152
2010-01-01	26388150
2011-01-01	26044130
2012-01-01	24637184
2013-01-01	24617934
2014-01-01	25112574
2015-01-01	25900199
2016-01-01	28819083