Year	Number of Firms
1992-01-01	12
1997-01-01	20
2002-01-01	15
2003-01-01	19
2004-01-01	25
2005-01-01	27
2006-01-01	31
2007-01-01	25
2008-01-01	34
2009-01-01	26
2010-01-01	26
2011-01-01	27
2012-01-01	27
2013-01-01	24
2014-01-01	31
2015-01-01	32
2016-01-01	33