Year	Number of Firms
1992-01-01	7
1997-01-01	7
2002-01-01	2
2003-01-01	10
2004-01-01	13
2005-01-01	17
2006-01-01	23
2007-01-01	18
2008-01-01	29
2009-01-01	17
2010-01-01	39
2011-01-01	53
2012-01-01	50
2013-01-01	47
2014-01-01	40
2015-01-01	44
2016-01-01	42