Year	Number of Firms
1992-01-01	214
1997-01-01	246
2002-01-01	283
2003-01-01	277
2004-01-01	314
2005-01-01	293
2006-01-01	265
2007-01-01	288
2008-01-01	309
2009-01-01	272
2010-01-01	299
2011-01-01	304
2012-01-01	313
2013-01-01	300
2014-01-01	317
2015-01-01	311
2016-01-01	326