Year	Number of Firms
1992-01-01	150
1997-01-01	157
2002-01-01	170
2003-01-01	169
2004-01-01	161
2005-01-01	135
2006-01-01	139
2007-01-01	142
2008-01-01	141
2009-01-01	150
2010-01-01	156
2011-01-01	162
2012-01-01	146
2013-01-01	134
2014-01-01	141
2015-01-01	157
2016-01-01	168