Year	Number of Firms
1992-01-01	27
1997-01-01	61
2002-01-01	72
2003-01-01	65
2004-01-01	54
2005-01-01	61
2006-01-01	57
2007-01-01	73
2008-01-01	76
2009-01-01	61
2010-01-01	76
2011-01-01	71
2012-01-01	75
2013-01-01	67
2014-01-01	68
2015-01-01	77
2016-01-01	83