Year	Number of Firms
1992-01-01	57
1997-01-01	72
2002-01-01	61
2003-01-01	55
2004-01-01	53
2005-01-01	59
2006-01-01	64
2007-01-01	67
2008-01-01	73
2009-01-01	74
2010-01-01	60
2011-01-01	61
2012-01-01	63
2013-01-01	60
2014-01-01	58
2015-01-01	65
2016-01-01	59