Year	Number of Firms
1992-01-01	6
1997-01-01	15
2002-01-01	17
2003-01-01	17
2004-01-01	24
2005-01-01	26
2006-01-01	22
2007-01-01	26
2008-01-01	42
2009-01-01	40
2010-01-01	38
2011-01-01	38
2012-01-01	42
2013-01-01	53
2014-01-01	55
2015-01-01	47
2016-01-01	58