Year	Number of Firms
1992-01-01	3
1997-01-01	11
2002-01-01	15
2003-01-01	17
2004-01-01	21
2005-01-01	25
2006-01-01	38
2007-01-01	41
2008-01-01	38
2009-01-01	37
2010-01-01	27
2011-01-01	47
2012-01-01	53
2013-01-01	67
2014-01-01	49
2015-01-01	46
2016-01-01	48