Year	Number of Firms
1992-01-01	207
1997-01-01	346
2002-01-01	353
2003-01-01	372
2004-01-01	394
2005-01-01	402
2006-01-01	392
2007-01-01	448
2008-01-01	466
2009-01-01	413
2010-01-01	443
2011-01-01	489
2012-01-01	495
2013-01-01	504
2014-01-01	563
2015-01-01	514
2016-01-01	517