Year	Number of Firms
1992-01-01	28
1997-01-01	35
2002-01-01	37
2003-01-01	41
2004-01-01	48
2005-01-01	37
2006-01-01	42
2007-01-01	57
2008-01-01	60
2009-01-01	55
2010-01-01	66
2011-01-01	68
2012-01-01	69
2013-01-01	62
2014-01-01	66
2015-01-01	68
2016-01-01	61