Year	Number of Firms
1992-01-01	177
1997-01-01	259
2002-01-01	303
2003-01-01	325
2004-01-01	327
2005-01-01	340
2006-01-01	317
2007-01-01	311
2008-01-01	334
2009-01-01	330
2010-01-01	345
2011-01-01	377
2012-01-01	345
2013-01-01	365
2014-01-01	348
2015-01-01	359
2016-01-01	343