Year	Number of Firms
1992-01-01	367
1997-01-01	452
2002-01-01	486
2003-01-01	519
2004-01-01	525
2005-01-01	499
2006-01-01	507
2007-01-01	555
2008-01-01	592
2009-01-01	574
2010-01-01	611
2011-01-01	636
2012-01-01	634
2013-01-01	592
2014-01-01	603
2015-01-01	623
2016-01-01	640