Year	Number of Firms
1992-01-01	4
1997-01-01	9
2002-01-01	15
2003-01-01	18
2004-01-01	28
2005-01-01	30
2006-01-01	29
2007-01-01	40
2008-01-01	55
2009-01-01	39
2010-01-01	42
2011-01-01	47
2012-01-01	44
2013-01-01	40
2014-01-01	36
2015-01-01	53
2016-01-01	61