Year	Number of Firms
1992-01-01	17
1997-01-01	26
2002-01-01	22
2003-01-01	27
2004-01-01	26
2005-01-01	20
2006-01-01	30
2007-01-01	34
2008-01-01	38
2009-01-01	41
2010-01-01	46
2011-01-01	28
2012-01-01	38
2013-01-01	34
2014-01-01	38
2015-01-01	35
2016-01-01	37