Year	Number of Firms
1992-01-01	160
1997-01-01	255
2002-01-01	255
2003-01-01	249
2004-01-01	245
2005-01-01	293
2006-01-01	280
2007-01-01	284
2008-01-01	339
2009-01-01	300
2010-01-01	325
2011-01-01	377
2012-01-01	368
2013-01-01	374
2014-01-01	376
2015-01-01	361
2016-01-01	388