Year	Number of Firms
1992-01-01	7
1997-01-01	11
2002-01-01	15
2003-01-01	18
2004-01-01	34
2005-01-01	35
2006-01-01	30
2007-01-01	30
2008-01-01	41
2009-01-01	35
2010-01-01	50
2011-01-01	53
2012-01-01	49
2013-01-01	48
2014-01-01	54
2015-01-01	54
2016-01-01	54