Year	Number
2004-01-01	96.3429
2005-01-01	89.4042
2006-01-01	91.3781
2007-01-01	92.2037
2008-01-01	94.1292
2009-01-01	96.5511
2010-01-01	97.5403
2011-01-01	98.8723
2012-01-01	101.1096
2013-01-01	103.3188
2014-01-01	105.6675
2015-01-01	105.9583
2016-01-01	105.6796
2017-01-01	105.7402