Year	Number of Firms
1992-01-01	153
1997-01-01	302
2002-01-01	145
2003-01-01	185
2004-01-01	237
2005-01-01	238
2006-01-01	253
2007-01-01	277
2008-01-01	293
2009-01-01	267
2010-01-01	296
2011-01-01	311
2012-01-01	279
2013-01-01	279
2014-01-01	260
2015-01-01	265
2016-01-01	275