Year	Number of Firms
1992-01-01	47
1997-01-01	53
2002-01-01	63
2003-01-01	52
2004-01-01	52
2005-01-01	45
2006-01-01	48
2007-01-01	46
2008-01-01	39
2009-01-01	47
2010-01-01	31
2011-01-01	43
2012-01-01	40
2013-01-01	24
2014-01-01	32
2015-01-01	24
2016-01-01	17