Year Number of Firms 1992-01-01 38 1997-01-01 68 2002-01-01 55 2003-01-01 63 2004-01-01 76 2005-01-01 84 2006-01-01 97 2007-01-01 98 2008-01-01 111 2009-01-01 111 2010-01-01 116 2011-01-01 157 2012-01-01 161 2013-01-01 167 2014-01-01 173 2015-01-01 155 2016-01-01 176