Year	Number
2004-01-01	943.7202
2005-01-01	959.2374
2006-01-01	1059.3899
2007-01-01	1204.2160
2008-01-01	1248.5689
2009-01-01	1278.6375
2010-01-01	1387.5081
2011-01-01	1275.1431
2012-01-01	1327.9246
2013-01-01	1375.4892
2014-01-01	1350.6286
2015-01-01	1327.3331
2016-01-01	1261.9645