Year	Number of Firms
1992-01-01	5
1997-01-01	21
2002-01-01	32
2003-01-01	27
2004-01-01	28
2005-01-01	27
2006-01-01	21
2007-01-01	33
2008-01-01	41
2009-01-01	45
2010-01-01	58
2011-01-01	55
2012-01-01	54
2013-01-01	52
2014-01-01	65
2015-01-01	53
2016-01-01	64