Year	Number of Firms
1992-01-01	234
1997-01-01	318
2002-01-01	360
2003-01-01	346
2004-01-01	376
2005-01-01	383
2006-01-01	398
2007-01-01	421
2008-01-01	480
2009-01-01	453
2010-01-01	472
2011-01-01	464
2012-01-01	469
2013-01-01	458
2014-01-01	459
2015-01-01	432
2016-01-01	418