Year Number of Firms 1992-01-01 24 1997-01-01 45 2002-01-01 53 2003-01-01 47 2004-01-01 54 2005-01-01 63 2006-01-01 56 2007-01-01 69 2008-01-01 77 2009-01-01 67 2010-01-01 79 2011-01-01 67 2012-01-01 85 2013-01-01 89 2014-01-01 92 2015-01-01 84 2016-01-01 88