Year	Number of Firms
1992-01-01	22
1997-01-01	38
2002-01-01	25
2003-01-01	33
2004-01-01	29
2005-01-01	19
2006-01-01	27
2007-01-01	34
2008-01-01	37
2009-01-01	29
2010-01-01	37
2011-01-01	39
2012-01-01	50
2013-01-01	40
2014-01-01	37
2015-01-01	43
2016-01-01	36