Year Number of Firms 1992-01-01 17 1997-01-01 20 2002-01-01 29 2003-01-01 21 2004-01-01 30 2005-01-01 23 2006-01-01 25 2007-01-01 27 2008-01-01 35 2009-01-01 30 2010-01-01 32 2011-01-01 42 2012-01-01 36 2013-01-01 44 2014-01-01 51 2015-01-01 45 2016-01-01 43