Year	Number of Firms
1992-01-01	29
1997-01-01	41
2002-01-01	28
2003-01-01	35
2004-01-01	48
2005-01-01	44
2006-01-01	54
2007-01-01	47
2008-01-01	54
2009-01-01	40
2010-01-01	57
2011-01-01	49
2012-01-01	53
2013-01-01	52
2014-01-01	53
2015-01-01	48
2016-01-01	52