Year	Number
2005-01-01	17.6508
2006-01-01	22.9536
2007-01-01	26.7189
2008-01-01	31.7083
2009-01-01	34.6373
2010-01-01	37.4759
2011-01-01	40.0297
2012-01-01	44.3470
2013-01-01	47.5079
2014-01-01	52.8408
2015-01-01	56.3382
2016-01-01	59.8735