Year	Number of Firms
1992-01-01	63
1997-01-01	87
2002-01-01	114
2003-01-01	118
2004-01-01	115
2005-01-01	111
2006-01-01	117
2007-01-01	147
2008-01-01	147
2009-01-01	137
2010-01-01	142
2011-01-01	142
2012-01-01	144
2013-01-01	149
2014-01-01	145
2015-01-01	126
2016-01-01	152