Year Number of Firms 1992-01-01 23 1997-01-01 45 2002-01-01 51 2003-01-01 49 2004-01-01 59 2005-01-01 71 2006-01-01 74 2007-01-01 79 2008-01-01 95 2009-01-01 112 2010-01-01 113 2011-01-01 130 2012-01-01 143 2013-01-01 138 2014-01-01 135 2015-01-01 125 2016-01-01 152