Year	Number of Firms
1992-01-01	21
1997-01-01	46
2002-01-01	55
2003-01-01	52
2004-01-01	60
2005-01-01	63
2006-01-01	58
2007-01-01	60
2008-01-01	66
2009-01-01	57
2010-01-01	62
2011-01-01	69
2012-01-01	64
2013-01-01	80
2014-01-01	74
2015-01-01	76
2016-01-01	77