Year	Number of Firms
1992-01-01	34
1997-01-01	44
2002-01-01	41
2003-01-01	56
2004-01-01	51
2005-01-01	48
2006-01-01	57
2007-01-01	58
2008-01-01	62
2009-01-01	51
2010-01-01	54
2011-01-01	55
2012-01-01	64
2013-01-01	64
2014-01-01	60
2015-01-01	55
2016-01-01	50