Year Number of Firms 1992-01-01 11 1997-01-01 16 2002-01-01 30 2003-01-01 25 2004-01-01 21 2005-01-01 26 2006-01-01 28 2007-01-01 26 2008-01-01 30 2009-01-01 26 2010-01-01 35 2011-01-01 29 2012-01-01 42 2013-01-01 31 2014-01-01 40 2015-01-01 48 2016-01-01 45