Year	Number of Firms
1992-01-01	75
1997-01-01	123
2002-01-01	160
2003-01-01	154
2004-01-01	184
2005-01-01	192
2006-01-01	259
2007-01-01	271
2008-01-01	290
2009-01-01	287
2010-01-01	321
2011-01-01	333
2012-01-01	346
2013-01-01	337
2014-01-01	341
2015-01-01	378
2016-01-01	428