Year	Number
2004-01-01	26.80138112
2005-01-01	34.23518038
2006-01-01	42.24230342
2007-01-01	45.01753754
2008-01-01	46.13341957
2009-01-01	48.48974381
2010-01-01	49.14374454
2011-01-01	20.85536142
2012-01-01	26.03150792
2013-01-01	23.31067031
2014-01-01	35.90275274