Year	Number of Firms
1992-01-01	120
1997-01-01	174
2002-01-01	261
2003-01-01	240
2004-01-01	241
2005-01-01	256
2006-01-01	262
2007-01-01	297
2008-01-01	282
2009-01-01	266
2010-01-01	293
2011-01-01	290
2012-01-01	283
2013-01-01	270
2014-01-01	306
2015-01-01	313
2016-01-01	348