Year	Number of Firms
1992-01-01	254
1997-01-01	339
2002-01-01	364
2003-01-01	389
2004-01-01	388
2005-01-01	360
2006-01-01	387
2007-01-01	386
2008-01-01	388
2009-01-01	382
2010-01-01	399
2011-01-01	420
2012-01-01	377
2013-01-01	382
2014-01-01	365
2015-01-01	372
2016-01-01	354