Year	Number of Firms
1992-01-01	133
1997-01-01	249
2002-01-01	304
2003-01-01	302
2004-01-01	313
2005-01-01	323
2006-01-01	331
2007-01-01	371
2008-01-01	408
2009-01-01	393
2010-01-01	427
2011-01-01	431
2012-01-01	459
2013-01-01	430
2014-01-01	462
2015-01-01	411
2016-01-01	404