Year	Number of Firms
1992-01-01	12
1997-01-01	26
2002-01-01	20
2003-01-01	17
2004-01-01	17
2005-01-01	27
2006-01-01	37
2007-01-01	43
2008-01-01	56
2009-01-01	51
2010-01-01	46
2011-01-01	45
2012-01-01	52
2013-01-01	53
2014-01-01	58
2015-01-01	49
2016-01-01	50