Year	Number of Firms
1992-01-01	11
1997-01-01	37
2002-01-01	56
2003-01-01	68
2004-01-01	66
2005-01-01	66
2006-01-01	66
2007-01-01	85
2008-01-01	74
2009-01-01	69
2010-01-01	76
2011-01-01	75
2012-01-01	73
2013-01-01	77
2014-01-01	80
2015-01-01	73
2016-01-01	91