Year	Number
2007-01-01	52.9254
2008-01-01	62.0223
2009-01-01	67.1274
2010-01-01	73.0866
2011-01-01	79.0207
2012-01-01	86.5543
2013-01-01	91.4177
2014-01-01	96.8788
2015-01-01	104.0324
2016-01-01	117.8012