Year Number of Firms 1992-01-01 533 1997-01-01 632 2002-01-01 1003 2003-01-01 1087 2004-01-01 1180 2005-01-01 1188 2006-01-01 1171 2007-01-01 1249 2008-01-01 1231 2009-01-01 1156 2010-01-01 1220 2011-01-01 1265 2012-01-01 1279 2013-01-01 1266 2014-01-01 1300 2015-01-01 1208 2016-01-01 1260