Year	Number of Firms
1992-01-01	12
1997-01-01	17
2002-01-01	25
2003-01-01	27
2004-01-01	24
2005-01-01	19
2006-01-01	22
2007-01-01	24
2008-01-01	24
2009-01-01	25
2010-01-01	39
2011-01-01	39
2012-01-01	39
2013-01-01	49
2014-01-01	46
2015-01-01	38
2016-01-01	35