Year	Number of Firms
1992-01-01	415
1997-01-01	543
2002-01-01	581
2003-01-01	554
2004-01-01	550
2005-01-01	503
2006-01-01	546
2007-01-01	609
2008-01-01	653
2009-01-01	592
2010-01-01	609
2011-01-01	638
2012-01-01	619
2013-01-01	598
2014-01-01	602
2015-01-01	617
2016-01-01	617