Year	Number of Firms
1992-01-01	5
1997-01-01	9
2002-01-01	18
2003-01-01	17
2004-01-01	18
2005-01-01	30
2006-01-01	43
2007-01-01	43
2008-01-01	58
2009-01-01	37
2010-01-01	39
2011-01-01	57
2012-01-01	44
2013-01-01	40
2014-01-01	49
2015-01-01	51
2016-01-01	51