Year	Number of Firms
1992-01-01	178
1997-01-01	198
2002-01-01	237
2003-01-01	272
2004-01-01	278
2005-01-01	260
2006-01-01	272
2007-01-01	328
2008-01-01	330
2009-01-01	291
2010-01-01	294
2011-01-01	285
2012-01-01	269
2013-01-01	275
2014-01-01	293
2015-01-01	301
2016-01-01	298