Year	Number of Firms
1992-01-01	75
1997-01-01	143
2002-01-01	165
2003-01-01	176
2004-01-01	191
2005-01-01	193
2006-01-01	206
2007-01-01	227
2008-01-01	232
2009-01-01	252
2010-01-01	261
2011-01-01	269
2012-01-01	291
2013-01-01	290
2014-01-01	300
2015-01-01	296
2016-01-01	331