Year	Number of Firms
1992-01-01	238
1997-01-01	318
2002-01-01	307
2003-01-01	285
2004-01-01	285
2005-01-01	322
2006-01-01	314
2007-01-01	299
2008-01-01	331
2009-01-01	290
2010-01-01	312
2011-01-01	297
2012-01-01	314
2013-01-01	314
2014-01-01	314
2015-01-01	319
2016-01-01	332