Year	Number of Firms
1992-01-01	7
1997-01-01	5
2002-01-01	11
2003-01-01	13
2004-01-01	17
2005-01-01	13
2006-01-01	17
2007-01-01	16
2008-01-01	15
2009-01-01	17
2010-01-01	40
2011-01-01	36
2012-01-01	41
2013-01-01	66
2014-01-01	52
2015-01-01	47
2016-01-01	44