Year	Number of Firms
1992-01-01	70
1997-01-01	153
2002-01-01	227
2003-01-01	209
2004-01-01	229
2005-01-01	253
2006-01-01	290
2007-01-01	279
2008-01-01	302
2009-01-01	297
2010-01-01	344
2011-01-01	338
2012-01-01	352
2013-01-01	370
2014-01-01	319
2015-01-01	393
2016-01-01	462