Year	Number of Firms
1992-01-01	3
1997-01-01	13
2002-01-01	14
2003-01-01	16
2004-01-01	17
2005-01-01	20
2006-01-01	19
2007-01-01	20
2008-01-01	22
2009-01-01	43
2010-01-01	38
2011-01-01	35
2012-01-01	41
2013-01-01	33
2014-01-01	40
2015-01-01	39
2016-01-01	39