Year	Number of Firms
1992-01-01	7
1997-01-01	16
2002-01-01	16
2003-01-01	15
2004-01-01	11
2005-01-01	13
2006-01-01	10
2007-01-01	22
2008-01-01	27
2009-01-01	24
2010-01-01	39
2011-01-01	33
2012-01-01	41
2013-01-01	38
2014-01-01	48
2015-01-01	42
2016-01-01	45