Year	Number of Firms
1992-01-01	12
1997-01-01	16
2002-01-01	47
2003-01-01	27
2004-01-01	26
2005-01-01	23
2006-01-01	28
2007-01-01	31
2008-01-01	60
2009-01-01	55
2010-01-01	63
2011-01-01	41
2012-01-01	43
2013-01-01	41
2014-01-01	50
2015-01-01	43
2016-01-01	49