Year	Number of Firms
1992-01-01	70
1997-01-01	130
2002-01-01	193
2003-01-01	228
2004-01-01	223
2005-01-01	262
2006-01-01	289
2007-01-01	332
2008-01-01	430
2009-01-01	427
2010-01-01	455
2011-01-01	493
2012-01-01	499
2013-01-01	516
2014-01-01	558
2015-01-01	565
2016-01-01	565