Year	Number of Firms
1992-01-01	18
1997-01-01	26
2002-01-01	44
2003-01-01	54
2004-01-01	53
2005-01-01	43
2006-01-01	40
2007-01-01	64
2008-01-01	56
2009-01-01	49
2010-01-01	51
2011-01-01	55
2012-01-01	50
2013-01-01	46
2014-01-01	57
2015-01-01	46
2016-01-01	64