Year	Number of Firms
1992-01-01	86
1997-01-01	190
2002-01-01	250
2003-01-01	278
2004-01-01	342
2005-01-01	400
2006-01-01	411
2007-01-01	480
2008-01-01	513
2009-01-01	540
2010-01-01	606
2011-01-01	616
2012-01-01	636
2013-01-01	608
2014-01-01	591
2015-01-01	633
2016-01-01	627