Year	Number of Firms
1992-01-01	155
1997-01-01	246
2002-01-01	266
2003-01-01	317
2004-01-01	341
2005-01-01	297
2006-01-01	301
2007-01-01	338
2008-01-01	339
2009-01-01	296
2010-01-01	342
2011-01-01	358
2012-01-01	348
2013-01-01	366
2014-01-01	376
2015-01-01	353
2016-01-01	351