Year	Number of Firms
1992-01-01	13
1997-01-01	41
2002-01-01	47
2003-01-01	49
2004-01-01	70
2005-01-01	61
2006-01-01	62
2007-01-01	70
2008-01-01	81
2009-01-01	79
2010-01-01	84
2011-01-01	83
2012-01-01	76
2013-01-01	79
2014-01-01	79
2015-01-01	76
2016-01-01	68