Year	Number of Firms
1992-01-01	181
1997-01-01	286
2002-01-01	340
2003-01-01	353
2004-01-01	360
2005-01-01	388
2006-01-01	387
2007-01-01	452
2008-01-01	464
2009-01-01	444
2010-01-01	512
2011-01-01	508
2012-01-01	521
2013-01-01	546
2014-01-01	564
2015-01-01	579
2016-01-01	607