Year	Number of Firms
1992-01-01	104
1997-01-01	170
2002-01-01	158
2003-01-01	161
2004-01-01	167
2005-01-01	184
2006-01-01	177
2007-01-01	223
2008-01-01	235
2009-01-01	277
2010-01-01	337
2011-01-01	322
2012-01-01	387
2013-01-01	369
2014-01-01	343
2015-01-01	325
2016-01-01	324