Year	Number of Firms
1992-01-01	193
1997-01-01	325
2002-01-01	267
2003-01-01	275
2004-01-01	256
2005-01-01	261
2006-01-01	279
2007-01-01	319
2008-01-01	332
2009-01-01	291
2010-01-01	281
2011-01-01	343
2012-01-01	289
2013-01-01	303
2014-01-01	281
2015-01-01	274
2016-01-01	267