Year	Number of Firms
1992-01-01	11
1997-01-01	20
2002-01-01	24
2003-01-01	24
2004-01-01	38
2005-01-01	31
2006-01-01	27
2007-01-01	31
2008-01-01	31
2009-01-01	39
2010-01-01	46
2011-01-01	49
2012-01-01	49
2013-01-01	49
2014-01-01	42
2015-01-01	49
2016-01-01	55