Year	Number of Firms
1992-01-01	25
1997-01-01	49
2002-01-01	51
2003-01-01	46
2004-01-01	60
2005-01-01	55
2006-01-01	66
2007-01-01	67
2008-01-01	66
2009-01-01	65
2010-01-01	70
2011-01-01	78
2012-01-01	65
2013-01-01	72
2014-01-01	68
2015-01-01	66
2016-01-01	55