Year	Number
2004-01-01	104.7998
2005-01-01	108.2435
2006-01-01	106.7809
2007-01-01	108.9277
2008-01-01	111.3984
2009-01-01	113.9113
2010-01-01	118.3567
2011-01-01	115.7489
2012-01-01	114.7660
2013-01-01	117.7819
2014-01-01	117.2456
2015-01-01	114.2723
2016-01-01	111.4195
2017-01-01	108.1595