Year	Number of Firms
1992-01-01	11077
1997-01-01	17437
2002-01-01	17555
2003-01-01	17825
2004-01-01	17780
2005-01-01	18405
2006-01-01	18989
2007-01-01	20741
2008-01-01	22066
2009-01-01	20927
2010-01-01	22023
2011-01-01	22950
2012-01-01	23137
2013-01-01	22828
2014-01-01	23319
2015-01-01	22568
2016-01-01	22551