Year	Number of Firms
1992-01-01	16
1997-01-01	38
2002-01-01	30
2003-01-01	29
2004-01-01	40
2005-01-01	46
2006-01-01	48
2007-01-01	54
2008-01-01	57
2009-01-01	44
2010-01-01	38
2011-01-01	42
2012-01-01	41
2013-01-01	42
2014-01-01	45
2015-01-01	42
2016-01-01	37