Year	Number of Firms
1992-01-01	180
1997-01-01	263
2002-01-01	302
2003-01-01	407
2004-01-01	441
2005-01-01	488
2006-01-01	482
2007-01-01	542
2008-01-01	593
2009-01-01	542
2010-01-01	505
2011-01-01	562
2012-01-01	521
2013-01-01	529
2014-01-01	572
2015-01-01	557
2016-01-01	552