Year	Number
2004-01-01	14580000
2005-01-01	17700000
2006-01-01	21410000
2007-01-01	25870000
2008-01-01	18800000
2009-01-01	17470000
2010-01-01	22500000
2011-01-01	26190000
2012-01-01	50169722
2013-01-01	72063608
2014-01-01	84769461
2015-01-01	95878324
2016-01-01	99172251
2017-01-01	108139863