Year	Number of Firms
1992-01-01	222
1997-01-01	274
2002-01-01	377
2003-01-01	395
2004-01-01	407
2005-01-01	432
2006-01-01	412
2007-01-01	437
2008-01-01	456
2009-01-01	416
2010-01-01	438
2011-01-01	456
2012-01-01	460
2013-01-01	484
2014-01-01	536
2015-01-01	554
2016-01-01	586