Year	Number of Firms
1992-01-01	31
1997-01-01	40
2002-01-01	52
2003-01-01	60
2004-01-01	48
2005-01-01	53
2006-01-01	48
2007-01-01	50
2008-01-01	59
2009-01-01	55
2010-01-01	57
2011-01-01	69
2012-01-01	48
2013-01-01	53
2014-01-01	63
2015-01-01	52
2016-01-01	53