Year	Number of Firms
1992-01-01	249
1997-01-01	297
2002-01-01	348
2003-01-01	353
2004-01-01	376
2005-01-01	408
2006-01-01	412
2007-01-01	447
2008-01-01	456
2009-01-01	387
2010-01-01	412
2011-01-01	429
2012-01-01	426
2013-01-01	412
2014-01-01	434
2015-01-01	438
2016-01-01	445