Year	Number of Firms
1992-01-01	201
1997-01-01	387
2002-01-01	482
2003-01-01	516
2004-01-01	501
2005-01-01	469
2006-01-01	494
2007-01-01	553
2008-01-01	573
2009-01-01	544
2010-01-01	603
2011-01-01	637
2012-01-01	616
2013-01-01	645
2014-01-01	668
2015-01-01	603
2016-01-01	570