Year	Number of Firms
1992-01-01	5
1997-01-01	17
2002-01-01	28
2003-01-01	25
2004-01-01	29
2005-01-01	28
2006-01-01	33
2007-01-01	40
2008-01-01	38
2009-01-01	40
2010-01-01	36
2011-01-01	34
2012-01-01	41
2013-01-01	38
2014-01-01	43
2015-01-01	36
2016-01-01	26