Year	Number of Firms
1992-01-01	29
1997-01-01	46
2002-01-01	52
2003-01-01	55
2004-01-01	55
2005-01-01	57
2006-01-01	59
2007-01-01	45
2008-01-01	69
2009-01-01	75
2010-01-01	64
2011-01-01	74
2012-01-01	70
2013-01-01	68
2014-01-01	79
2015-01-01	72
2016-01-01	85