Year	Number of Firms
1992-01-01	400
1997-01-01	445
2002-01-01	468
2003-01-01	516
2004-01-01	545
2005-01-01	516
2006-01-01	607
2007-01-01	688
2008-01-01	709
2009-01-01	633
2010-01-01	611
2011-01-01	544
2012-01-01	571
2013-01-01	547
2014-01-01	565
2015-01-01	549
2016-01-01	508