Year	Number
2007-01-01	4.8099
2008-01-01	6.0164
2009-01-01	7.5336
2010-01-01	9.0959
2011-01-01	9.6372
2012-01-01	16.9118
2013-01-01	22.3669
2014-01-01	36.5358
2015-01-01	25.4388
2016-01-01	43.2172