Year	Number of Firms
1992-01-01	173
1997-01-01	217
2002-01-01	207
2003-01-01	228
2004-01-01	237
2005-01-01	234
2006-01-01	237
2007-01-01	266
2008-01-01	290
2009-01-01	266
2010-01-01	269
2011-01-01	256
2012-01-01	249
2013-01-01	249
2014-01-01	249
2015-01-01	230
2016-01-01	215