Year	Number
2004-01-01	116.1557
2005-01-01	106.7880
2006-01-01	108.3359
2007-01-01	108.6152
2008-01-01	110.1537
2009-01-01	112.3358
2010-01-01	112.9183
2011-01-01	113.8038
2012-01-01	115.6367
2013-01-01	117.2975
2014-01-01	118.9683
2015-01-01	117.9363
2016-01-01	116.0586
2017-01-01	116.1251