Year	Number of Firms
1992-01-01	19
1997-01-01	29
2002-01-01	24
2003-01-01	28
2004-01-01	22
2005-01-01	29
2006-01-01	29
2007-01-01	40
2008-01-01	37
2009-01-01	34
2010-01-01	38
2011-01-01	43
2012-01-01	39
2013-01-01	32
2014-01-01	33
2015-01-01	34
2016-01-01	39