Year	Number of Firms
1992-01-01	24
1997-01-01	35
2002-01-01	48
2003-01-01	46
2004-01-01	49
2005-01-01	46
2006-01-01	41
2007-01-01	37
2008-01-01	48
2009-01-01	37
2010-01-01	49
2011-01-01	53
2012-01-01	48
2013-01-01	57
2014-01-01	47
2015-01-01	57
2016-01-01	54