Year	Number of Firms
1992-01-01	40
1997-01-01	155
2002-01-01	186
2003-01-01	182
2004-01-01	210
2005-01-01	270
2006-01-01	278
2007-01-01	330
2008-01-01	372
2009-01-01	343
2010-01-01	404
2011-01-01	400
2012-01-01	417
2013-01-01	444
2014-01-01	458
2015-01-01	462
2016-01-01	487