Year	Number
2007-01-01	66.9169
2008-01-01	69.9282
2009-01-01	82.9719
2010-01-01	128.1214
2011-01-01	200.8118
2012-01-01	267.7499
2013-01-01	313.9989
2014-01-01	344.2723
2015-01-01	361.8358
2016-01-01	370.7285
2017-01-01	400.7973