Year	Number of Firms
1992-01-01	211
1997-01-01	311
2002-01-01	341
2003-01-01	356
2004-01-01	333
2005-01-01	370
2006-01-01	353
2007-01-01	388
2008-01-01	384
2009-01-01	372
2010-01-01	427
2011-01-01	476
2012-01-01	449
2013-01-01	475
2014-01-01	469
2015-01-01	460
2016-01-01	443