Year	Number of Firms
1992-01-01	7
1997-01-01	16
2002-01-01	21
2003-01-01	20
2004-01-01	18
2005-01-01	25
2006-01-01	15
2007-01-01	23
2008-01-01	31
2009-01-01	40
2010-01-01	45
2011-01-01	43
2012-01-01	55
2013-01-01	58
2014-01-01	46
2015-01-01	44
2016-01-01	43