Year	Number of Firms
1992-01-01	285
1997-01-01	414
2002-01-01	440
2003-01-01	440
2004-01-01	465
2005-01-01	468
2006-01-01	528
2007-01-01	591
2008-01-01	683
2009-01-01	638
2010-01-01	683
2011-01-01	728
2012-01-01	734
2013-01-01	738
2014-01-01	756
2015-01-01	668
2016-01-01	609