Year	Number of Firms
1992-01-01	13
1997-01-01	20
2002-01-01	15
2003-01-01	29
2004-01-01	24
2005-01-01	35
2006-01-01	37
2007-01-01	33
2008-01-01	41
2009-01-01	33
2010-01-01	30
2011-01-01	38
2012-01-01	35
2013-01-01	32
2014-01-01	40
2015-01-01	38
2016-01-01	43