Year	Number
2004-01-01	1097.6738
2005-01-01	1190.6068
2006-01-01	1284.8520
2007-01-01	1366.0624
2008-01-01	1388.4081
2009-01-01	1387.1851
2010-01-01	1426.4111
2011-01-01	1386.1958
2012-01-01	1450.7360
2013-01-01	1480.8105
2014-01-01	1504.5919
2015-01-01	1526.7465
2016-01-01	1549.2994