Year	Number of Firms
1992-01-01	14
1997-01-01	26
2002-01-01	39
2003-01-01	52
2004-01-01	47
2005-01-01	45
2006-01-01	41
2007-01-01	42
2008-01-01	51
2009-01-01	41
2010-01-01	41
2011-01-01	64
2012-01-01	55
2013-01-01	50
2014-01-01	55
2015-01-01	46
2016-01-01	54