Year	Number
2004-01-01	170.4211
2005-01-01	195.0054
2006-01-01	319.8257
2007-01-01	236.2485
2008-01-01	234.4782
2009-01-01	324.5141
2010-01-01	365.1151
2011-01-01	408.9988
2012-01-01	549.1991
2013-01-01	698.4377