Year	Number of Firms
1992-01-01	41
1997-01-01	52
2002-01-01	36
2003-01-01	31
2004-01-01	41
2005-01-01	40
2006-01-01	40
2007-01-01	43
2008-01-01	49
2009-01-01	41
2010-01-01	49
2011-01-01	44
2012-01-01	37
2013-01-01	28
2014-01-01	24
2015-01-01	29
2016-01-01	12