Year	Number of Firms
1992-01-01	366
1997-01-01	498
2002-01-01	519
2003-01-01	561
2004-01-01	570
2005-01-01	548
2006-01-01	528
2007-01-01	554
2008-01-01	571
2009-01-01	555
2010-01-01	604
2011-01-01	606
2012-01-01	591
2013-01-01	576
2014-01-01	558
2015-01-01	606
2016-01-01	591