Year	Number of Firms
1992-01-01	39
1997-01-01	41
2002-01-01	44
2003-01-01	48
2004-01-01	60
2005-01-01	61
2006-01-01	52
2007-01-01	65
2008-01-01	66
2009-01-01	51
2010-01-01	49
2011-01-01	48
2012-01-01	44
2013-01-01	41
2014-01-01	46
2015-01-01	50
2016-01-01	63