Year	Number of Firms
1992-01-01	6
1997-01-01	7
2002-01-01	20
2003-01-01	14
2004-01-01	18
2005-01-01	24
2006-01-01	24
2007-01-01	27
2008-01-01	26
2009-01-01	34
2010-01-01	36
2011-01-01	32
2012-01-01	42
2013-01-01	42
2014-01-01	44
2015-01-01	48
2016-01-01	48