Year	Number of Firms
1992-01-01	4
1997-01-01	14
2002-01-01	14
2003-01-01	13
2004-01-01	13
2005-01-01	16
2006-01-01	21
2007-01-01	23
2008-01-01	21
2009-01-01	24
2010-01-01	40
2011-01-01	41
2012-01-01	53
2013-01-01	44
2014-01-01	42
2015-01-01	39
2016-01-01	41