Year	Number of Firms
1997-01-01	103
2002-01-01	145
2003-01-01	164
2004-01-01	188
2005-01-01	188
2006-01-01	215
2007-01-01	249
2008-01-01	292
2009-01-01	257
2010-01-01	282
2011-01-01	296
2012-01-01	300
2013-01-01	306
2014-01-01	322
2015-01-01	316
2016-01-01	315