Year	Number of Firms
1992-01-01	18
1997-01-01	34
2002-01-01	42
2003-01-01	40
2004-01-01	41
2005-01-01	38
2006-01-01	38
2007-01-01	49
2008-01-01	58
2009-01-01	54
2010-01-01	57
2011-01-01	73
2012-01-01	59
2013-01-01	57
2014-01-01	56
2015-01-01	60
2016-01-01	58