Year	Number of Firms
1992-01-01	217
1997-01-01	242
2002-01-01	257
2003-01-01	253
2004-01-01	262
2005-01-01	263
2006-01-01	263
2007-01-01	306
2008-01-01	310
2009-01-01	302
2010-01-01	286
2011-01-01	331
2012-01-01	266
2013-01-01	267
2014-01-01	291
2015-01-01	270
2016-01-01	276