Year	Number of Firms
1992-01-01	15
1997-01-01	27
2002-01-01	22
2003-01-01	23
2004-01-01	26
2005-01-01	28
2006-01-01	39
2007-01-01	31
2008-01-01	37
2009-01-01	40
2010-01-01	41
2011-01-01	35
2012-01-01	43
2013-01-01	37
2014-01-01	37
2015-01-01	42
2016-01-01	38