Year	Number of Firms
1992-01-01	17
1997-01-01	25
2002-01-01	33
2003-01-01	30
2004-01-01	38
2005-01-01	32
2006-01-01	38
2007-01-01	32
2008-01-01	39
2009-01-01	38
2010-01-01	34
2011-01-01	35
2012-01-01	39
2013-01-01	40
2014-01-01	36
2015-01-01	49
2016-01-01	36