Year	Number of Firms
1992-01-01	41
1997-01-01	73
2002-01-01	53
2003-01-01	54
2004-01-01	43
2005-01-01	48
2006-01-01	48
2007-01-01	45
2008-01-01	50
2009-01-01	44
2010-01-01	47
2011-01-01	37
2012-01-01	38
2013-01-01	38
2014-01-01	41
2015-01-01	47
2016-01-01	42