Year	Number of Firms
1992-01-01	148
1997-01-01	213
2002-01-01	237
2003-01-01	255
2004-01-01	295
2005-01-01	275
2006-01-01	271
2007-01-01	279
2008-01-01	301
2009-01-01	289
2010-01-01	291
2011-01-01	302
2012-01-01	297
2013-01-01	291
2014-01-01	306
2015-01-01	287
2016-01-01	311