Year	Number of Firms
1992-01-01	6
1997-01-01	11
2002-01-01	20
2003-01-01	15
2004-01-01	17
2005-01-01	19
2006-01-01	19
2007-01-01	24
2008-01-01	40
2009-01-01	39
2010-01-01	38
2011-01-01	38
2012-01-01	49
2013-01-01	44
2014-01-01	51
2015-01-01	47
2016-01-01	56