Year	Number of Firms
1992-01-01	10
1997-01-01	16
2002-01-01	16
2003-01-01	12
2004-01-01	20
2005-01-01	25
2006-01-01	20
2007-01-01	26
2008-01-01	35
2009-01-01	39
2010-01-01	30
2011-01-01	40
2012-01-01	43
2013-01-01	34
2014-01-01	39
2015-01-01	44
2016-01-01	50