Year Number of Firms 1992-01-01 22 1997-01-01 38 2002-01-01 36 2003-01-01 51 2004-01-01 46 2005-01-01 54 2006-01-01 63 2007-01-01 73 2008-01-01 73 2009-01-01 78 2010-01-01 83 2011-01-01 87 2012-01-01 83 2013-01-01 88 2014-01-01 76 2015-01-01 86 2016-01-01 93