Year	Number of Firms
1992-01-01	27
1997-01-01	40
2002-01-01	51
2003-01-01	58
2004-01-01	58
2005-01-01	70
2006-01-01	60
2007-01-01	72
2008-01-01	80
2009-01-01	84
2010-01-01	72
2011-01-01	57
2012-01-01	60
2013-01-01	77
2014-01-01	61
2015-01-01	56
2016-01-01	62