Year	Number of Firms
1992-01-01	144
1997-01-01	228
2002-01-01	194
2003-01-01	221
2004-01-01	233
2005-01-01	261
2006-01-01	246
2007-01-01	273
2008-01-01	303
2009-01-01	260
2010-01-01	283
2011-01-01	312
2012-01-01	320
2013-01-01	356
2014-01-01	372
2015-01-01	350
2016-01-01	350