Year	Number of Firms
1992-01-01	34
1997-01-01	36
2002-01-01	31
2003-01-01	40
2004-01-01	44
2005-01-01	41
2006-01-01	51
2007-01-01	56
2008-01-01	66
2009-01-01	58
2010-01-01	58
2011-01-01	68
2012-01-01	59
2013-01-01	63
2014-01-01	56
2015-01-01	68
2016-01-01	68