Year	Number of Firms
1992-01-01	29
1997-01-01	42
2002-01-01	42
2003-01-01	45
2004-01-01	44
2005-01-01	43
2006-01-01	50
2007-01-01	55
2008-01-01	46
2009-01-01	48
2010-01-01	54
2011-01-01	49
2012-01-01	53
2013-01-01	60
2014-01-01	60
2015-01-01	66
2016-01-01	66