Year	Number of Firms
1992-01-01	314
1997-01-01	490
2002-01-01	542
2003-01-01	550
2004-01-01	571
2005-01-01	560
2006-01-01	577
2007-01-01	652
2008-01-01	626
2009-01-01	621
2010-01-01	641
2011-01-01	660
2012-01-01	647
2013-01-01	641
2014-01-01	676
2015-01-01	616
2016-01-01	609