Year	Number of Firms
1992-01-01	300
1997-01-01	538
2002-01-01	627
2003-01-01	573
2004-01-01	579
2005-01-01	593
2006-01-01	581
2007-01-01	590
2008-01-01	623
2009-01-01	525
2010-01-01	537
2011-01-01	549
2012-01-01	512
2013-01-01	487
2014-01-01	511
2015-01-01	518
2016-01-01	482