Year	Number of Firms
1992-01-01	2
1997-01-01	2
2002-01-01	3
2003-01-01	6
2004-01-01	20
2005-01-01	21
2006-01-01	25
2007-01-01	18
2008-01-01	27
2009-01-01	22
2010-01-01	36
2011-01-01	50
2012-01-01	58
2013-01-01	50
2014-01-01	44
2015-01-01	50
2016-01-01	34