Year	Number of Firms
1992-01-01	247
1997-01-01	322
2002-01-01	362
2003-01-01	365
2004-01-01	377
2005-01-01	368
2006-01-01	349
2007-01-01	411
2008-01-01	445
2009-01-01	377
2010-01-01	393
2011-01-01	417
2012-01-01	381
2013-01-01	354
2014-01-01	383
2015-01-01	375
2016-01-01	383