Year	Number of Firms
1992-01-01	27
1997-01-01	37
2002-01-01	56
2003-01-01	59
2004-01-01	56
2005-01-01	59
2006-01-01	59
2007-01-01	56
2008-01-01	85
2009-01-01	78
2010-01-01	75
2011-01-01	69
2012-01-01	69
2013-01-01	72
2014-01-01	78
2015-01-01	66
2016-01-01	70