Year	Number
2004-01-01	264.5385
2005-01-01	354.9049
2006-01-01	400.8003
2007-01-01	374.8088
2008-01-01	413.0715
2009-01-01	437.8162
2010-01-01	459.1858
2011-01-01	874.4752
2012-01-01	738.5598
2013-01-01	1313.0160
2014-01-01	1366.1060
2015-01-01	1267.6388
2016-01-01	1448.3089