Year	Number of Firms
1992-01-01	17
1997-01-01	43
2002-01-01	51
2003-01-01	49
2004-01-01	60
2005-01-01	49
2006-01-01	67
2007-01-01	85
2008-01-01	79
2009-01-01	73
2010-01-01	69
2011-01-01	73
2012-01-01	57
2013-01-01	65
2014-01-01	61
2015-01-01	68
2016-01-01	63