Year	Number
2004-01-01	81.8565
2005-01-01	80.3034
2006-01-01	79.3522
2007-01-01	76.0273
2008-01-01	70.3974
2009-01-01	75.7348
2010-01-01	92.3969
2011-01-01	92.2909
2012-01-01	95.3626
2013-01-01	95.3612
2014-01-01	101.2178
2015-01-01	104.9757
2016-01-01	107.7325
