Year	Number of Firms
1992-01-01	36
1997-01-01	85
2002-01-01	92
2003-01-01	91
2004-01-01	138
2005-01-01	118
2006-01-01	111
2007-01-01	134
2008-01-01	164
2009-01-01	168
2010-01-01	198
2011-01-01	257
2012-01-01	270
2013-01-01	272
2014-01-01	258
2015-01-01	237
2016-01-01	251