Year	Number of Firms
1992-01-01	56
1997-01-01	123
2002-01-01	197
2003-01-01	223
2004-01-01	247
2005-01-01	266
2006-01-01	272
2007-01-01	349
2008-01-01	345
2009-01-01	363
2010-01-01	389
2011-01-01	432
2012-01-01	398
2013-01-01	398
2014-01-01	412
2015-01-01	418
2016-01-01	426