Year	Number
2004-01-01	251.2545
2005-01-01	397.1136
2006-01-01	529.2132
2007-01-01	607.2718
2008-01-01	749.8577
2009-01-01	816.3503
2010-01-01	895.9470
2011-01-01	1038.1519
2012-01-01	1286.5293
2013-01-01	1301.9876
2014-01-01	1621.7938
2015-01-01	1655.0711
2016-01-01	1867.4223