Year	Number of Firms
1992-01-01	33
1997-01-01	44
2002-01-01	49
2003-01-01	46
2004-01-01	54
2005-01-01	49
2006-01-01	50
2007-01-01	63
2008-01-01	52
2009-01-01	60
2010-01-01	55
2011-01-01	52
2012-01-01	40
2013-01-01	39
2014-01-01	37
2015-01-01	42
2016-01-01	43