Year	Number
2005-01-01	15.2454
2006-01-01	22.7296
2007-01-01	31.6515
2008-01-01	32.3426
2009-01-01	29.9454
2010-01-01	31.6612
2011-01-01	31.4594
2012-01-01	32.4102
2013-01-01	34.3619
2014-01-01	35.6258
2015-01-01	37.4918
2016-01-01	36.4136