Year	Number of Firms
1992-01-01	9
1997-01-01	18
2002-01-01	25
2003-01-01	18
2004-01-01	30
2005-01-01	28
2006-01-01	25
2007-01-01	29
2008-01-01	40
2009-01-01	33
2010-01-01	42
2011-01-01	49
2012-01-01	62
2013-01-01	58
2014-01-01	62
2015-01-01	70
2016-01-01	58