Year	Number of Firms
1992-01-01	184
1997-01-01	249
2002-01-01	280
2003-01-01	292
2004-01-01	280
2005-01-01	270
2006-01-01	279
2007-01-01	283
2008-01-01	277
2009-01-01	264
2010-01-01	293
2011-01-01	286
2012-01-01	290
2013-01-01	272
2014-01-01	269
2015-01-01	267
2016-01-01	256