Year	Number of Firms
1992-01-01	18
1997-01-01	33
2002-01-01	54
2003-01-01	50
2004-01-01	48
2005-01-01	48
2006-01-01	69
2007-01-01	69
2008-01-01	75
2009-01-01	64
2010-01-01	79
2011-01-01	81
2012-01-01	76
2013-01-01	80
2014-01-01	79
2015-01-01	76
2016-01-01	92