Year	Number
2004-01-01	4750.0000
2005-01-01	4892.8571
2006-01-01	5209.7902
2007-01-01	5273.9726
2008-01-01	5479.4521
2009-01-01	5593.2203
2010-01-01	5690.2357
2011-01-01	5886.2876
2012-01-01	5986.6221
2013-01-01	6138.6139
2014-01-01	6402.6403
2015-01-01	6567.6568
2016-01-01	6600.6601