Year	Number of Firms
1992-01-01	203
1997-01-01	281
2002-01-01	321
2003-01-01	371
2004-01-01	415
2005-01-01	446
2006-01-01	452
2007-01-01	532
2008-01-01	585
2009-01-01	491
2010-01-01	499
2011-01-01	511
2012-01-01	474
2013-01-01	463
2014-01-01	461
2015-01-01	471
2016-01-01	483