Year Number of Firms 1992-01-01 10 1997-01-01 21 2002-01-01 26 2003-01-01 32 2004-01-01 37 2005-01-01 37 2006-01-01 41 2007-01-01 45 2008-01-01 46 2009-01-01 38 2010-01-01 45 2011-01-01 45 2012-01-01 46 2013-01-01 37 2014-01-01 54 2015-01-01 39 2016-01-01 41