Year	Number of Firms
1992-01-01	8
1997-01-01	22
2002-01-01	30
2003-01-01	32
2004-01-01	49
2005-01-01	57
2006-01-01	59
2007-01-01	54
2008-01-01	67
2009-01-01	70
2010-01-01	67
2011-01-01	79
2012-01-01	65
2013-01-01	78
2014-01-01	73
2015-01-01	70
2016-01-01	71