Year	Number of Firms
1992-01-01	3
1997-01-01	3
2002-01-01	13
2003-01-01	9
2004-01-01	21
2005-01-01	13
2006-01-01	15
2007-01-01	21
2008-01-01	25
2009-01-01	29
2010-01-01	38
2011-01-01	38
2012-01-01	32
2013-01-01	41
2014-01-01	49
2015-01-01	47
2016-01-01	55