Year	Number of Firms
1992-01-01	188
1997-01-01	290
2002-01-01	358
2003-01-01	340
2004-01-01	371
2005-01-01	397
2006-01-01	391
2007-01-01	428
2008-01-01	414
2009-01-01	406
2010-01-01	435
2011-01-01	475
2012-01-01	471
2013-01-01	482
2014-01-01	515
2015-01-01	517
2016-01-01	503