Year	Number of Firms
1992-01-01	25
1997-01-01	55
2002-01-01	24
2003-01-01	31
2004-01-01	39
2005-01-01	40
2006-01-01	38
2007-01-01	47
2008-01-01	53
2009-01-01	50
2010-01-01	55
2011-01-01	61
2012-01-01	56
2013-01-01	55
2014-01-01	53
2015-01-01	52
2016-01-01	70