Year	Number of Firms
1992-01-01	21
1997-01-01	44
2002-01-01	32
2003-01-01	48
2004-01-01	55
2005-01-01	66
2006-01-01	69
2007-01-01	81
2008-01-01	72
2009-01-01	78
2010-01-01	72
2011-01-01	74
2012-01-01	61
2013-01-01	66
2014-01-01	62
2015-01-01	63
2016-01-01	52