Year	Number
2004-01-01	98.2685
2005-01-01	95.5291
2006-01-01	140.1185
2007-01-01	151.3887
2008-01-01	154.1068
2009-01-01	168.0871
2010-01-01	168.3038
2011-01-01	448.6778
2012-01-01	655.9486
2013-01-01	726.0801
2014-01-01	849.3471
2015-01-01	893.5439
2016-01-01	868.5140