Year	Number of Firms
1992-01-01	31
1997-01-01	67
2002-01-01	32
2003-01-01	38
2004-01-01	39
2005-01-01	37
2006-01-01	33
2007-01-01	42
2008-01-01	47
2009-01-01	54
2010-01-01	57
2011-01-01	68
2012-01-01	64
2013-01-01	73
2014-01-01	59
2015-01-01	54
2016-01-01	61