Year	Number of Firms
1992-01-01	183
1997-01-01	336
2002-01-01	427
2003-01-01	400
2004-01-01	466
2005-01-01	501
2006-01-01	499
2007-01-01	503
2008-01-01	618
2009-01-01	505
2010-01-01	548
2011-01-01	592
2012-01-01	611
2013-01-01	644
2014-01-01	657
2015-01-01	655
2016-01-01	639