Year	Number
2004-01-01	291.5071
2005-01-01	279.4365
2006-01-01	310.1911
2007-01-01	346.9772
2008-01-01	376.8163
2009-01-01	616.9457
2010-01-01	634.6687
2011-01-01	666.3931
2012-01-01	703.2585
2013-01-01	741.3861
2014-01-01	738.7565
2015-01-01	796.5014
2016-01-01	841.1324
2017-01-01	859.8502