Year	Number of Firms
1992-01-01	96
1997-01-01	107
2002-01-01	131
2003-01-01	125
2004-01-01	137
2005-01-01	135
2006-01-01	138
2007-01-01	139
2008-01-01	180
2009-01-01	161
2010-01-01	170
2011-01-01	155
2012-01-01	157
2013-01-01	158
2014-01-01	151
2015-01-01	140
2016-01-01	140