Year	Number of Firms
1992-01-01	16
1997-01-01	31
2002-01-01	29
2003-01-01	34
2004-01-01	39
2005-01-01	46
2006-01-01	48
2007-01-01	52
2008-01-01	62
2009-01-01	53
2010-01-01	64
2011-01-01	53
2012-01-01	63
2013-01-01	65
2014-01-01	61
2015-01-01	55
2016-01-01	53