Year	Number
2005-01-01	1586.5963
2006-01-01	1584.2237
2007-01-01	1663.3863
2008-01-01	1574.9187
2009-01-01	1586.4069
2010-01-01	2727.3993
2011-01-01	2813.6048
2012-01-01	2911.7358
2013-01-01	3162.1101
2014-01-01	3036.4114
2015-01-01	3156.7809
2016-01-01	3393.6190
2017-01-01	3764.0989