Year	Number of Firms
1992-01-01	4
1997-01-01	19
2002-01-01	27
2003-01-01	35
2004-01-01	34
2005-01-01	43
2006-01-01	46
2007-01-01	61
2008-01-01	85
2009-01-01	49
2010-01-01	47
2011-01-01	58
2012-01-01	53
2013-01-01	66
2014-01-01	54
2015-01-01	51
2016-01-01	64