Year	Number of Firms
1992-01-01	11
1997-01-01	13
2002-01-01	19
2003-01-01	13
2004-01-01	13
2005-01-01	13
2006-01-01	14
2007-01-01	17
2008-01-01	24
2009-01-01	41
2010-01-01	52
2011-01-01	42
2012-01-01	35
2013-01-01	42
2014-01-01	40
2015-01-01	47
2016-01-01	49