Year Number of Firms 1992-01-01 18 1997-01-01 32 2002-01-01 18 2003-01-01 24 2004-01-01 30 2005-01-01 31 2006-01-01 30 2007-01-01 41 2008-01-01 34 2009-01-01 44 2010-01-01 54 2011-01-01 44 2012-01-01 58 2013-01-01 53 2014-01-01 55 2015-01-01 63 2016-01-01 49