Year	Number of Firms
1992-01-01	10
1997-01-01	18
2002-01-01	27
2003-01-01	26
2004-01-01	30
2005-01-01	27
2006-01-01	23
2007-01-01	28
2008-01-01	31
2009-01-01	30
2010-01-01	38
2011-01-01	34
2012-01-01	41
2013-01-01	40
2014-01-01	37
2015-01-01	44
2016-01-01	32