Year Number of Firms 1992-01-01 515 1997-01-01 606 2002-01-01 787 2003-01-01 803 2004-01-01 811 2005-01-01 847 2006-01-01 975 2007-01-01 1051 2008-01-01 1217 2009-01-01 1324 2010-01-01 1329 2011-01-01 1404 2012-01-01 1363 2013-01-01 1379 2014-01-01 1383 2015-01-01 1317 2016-01-01 1149