Year	Number of Firms
1992-01-01	27
1997-01-01	44
2002-01-01	37
2003-01-01	45
2004-01-01	47
2005-01-01	44
2006-01-01	41
2007-01-01	53
2008-01-01	48
2009-01-01	53
2010-01-01	54
2011-01-01	44
2012-01-01	46
2013-01-01	41
2014-01-01	52
2015-01-01	48
2016-01-01	42