Year	Number of Firms
1992-01-01	22
1997-01-01	41
2002-01-01	47
2003-01-01	57
2004-01-01	58
2005-01-01	60
2006-01-01	66
2007-01-01	73
2008-01-01	64
2009-01-01	63
2010-01-01	71
2011-01-01	71
2012-01-01	74
2013-01-01	70
2014-01-01	65
2015-01-01	61
2016-01-01	72