Year	Number of Firms
1992-01-01	74
1997-01-01	125
2002-01-01	153
2003-01-01	140
2004-01-01	164
2005-01-01	221
2006-01-01	206
2007-01-01	253
2008-01-01	261
2009-01-01	259
2010-01-01	272
2011-01-01	287
2012-01-01	305
2013-01-01	305
2014-01-01	285
2015-01-01	280
2016-01-01	281