Year	Number
2008-01-01	276.9499
2009-01-01	211.1079
2010-01-01	168.9774
2011-01-01	181.6823
2012-01-01	209.7282
2013-01-01	217.8713
2014-01-01	260.8034
2015-01-01	247.3758
2016-01-01	281.2025
2017-01-01	309.9871