Year	Number of Firms
1992-01-01	29
1997-01-01	34
2002-01-01	47
2003-01-01	38
2004-01-01	39
2005-01-01	55
2006-01-01	54
2007-01-01	52
2008-01-01	62
2009-01-01	61
2010-01-01	54
2011-01-01	73
2012-01-01	64
2013-01-01	67
2014-01-01	66
2015-01-01	65
2016-01-01	65