Year	Number of Firms
1992-01-01	5
1997-01-01	16
2002-01-01	28
2003-01-01	32
2004-01-01	34
2005-01-01	30
2006-01-01	41
2007-01-01	36
2008-01-01	49
2009-01-01	23
2010-01-01	23
2011-01-01	24
2012-01-01	26
2013-01-01	28
2014-01-01	34
2015-01-01	27
2016-01-01	24