Year	Number
2005-01-01	9.5500
2006-01-01	17.9431
2007-01-01	31.7257
2008-01-01	45.3047
2009-01-01	49.2069
2010-01-01	51.1188
2011-01-01	51.2493
2012-01-01	49.6511
2013-01-01	54.0477
2014-01-01	55.5994
2015-01-01	60.6656
2016-01-01	59.9928