Year	Number of Firms
1992-01-01	90
1997-01-01	188
2002-01-01	228
2003-01-01	233
2004-01-01	277
2005-01-01	239
2006-01-01	272
2007-01-01	275
2008-01-01	279
2009-01-01	259
2010-01-01	295
2011-01-01	293
2012-01-01	273
2013-01-01	275
2014-01-01	294
2015-01-01	275
2016-01-01	268