Year	Number of Firms
1992-01-01	20
1997-01-01	24
2002-01-01	21
2003-01-01	31
2004-01-01	35
2005-01-01	41
2006-01-01	40
2007-01-01	36
2008-01-01	37
2009-01-01	40
2010-01-01	36
2011-01-01	34
2012-01-01	32
2013-01-01	26
2014-01-01	36
2015-01-01	30
2016-01-01	30