Year Number of Firms 1992-01-01 1072 1997-01-01 1641 2002-01-01 1454 2003-01-01 1478 2004-01-01 1422 2005-01-01 1404 2006-01-01 1314 2007-01-01 1321 2008-01-01 1290 2009-01-01 1226 2010-01-01 1295 2011-01-01 1382 2012-01-01 1403 2013-01-01 1314 2014-01-01 1386 2015-01-01 1326 2016-01-01 1372