Year	Number of Firms
1992-01-01	116
1997-01-01	256
2002-01-01	310
2003-01-01	272
2004-01-01	308
2005-01-01	292
2006-01-01	330
2007-01-01	376
2008-01-01	400
2009-01-01	382
2010-01-01	449
2011-01-01	463
2012-01-01	468
2013-01-01	513
2014-01-01	462
2015-01-01	494
2016-01-01	493