Year	Number of Firms
1992-01-01	7
1997-01-01	11
2002-01-01	10
2003-01-01	5
2004-01-01	13
2005-01-01	18
2006-01-01	20
2007-01-01	22
2008-01-01	25
2009-01-01	28
2010-01-01	27
2011-01-01	33
2012-01-01	30
2013-01-01	30
2014-01-01	32
2015-01-01	24
2016-01-01	23