Year	Number of Firms
1992-01-01	66
1997-01-01	91
2002-01-01	126
2003-01-01	130
2004-01-01	151
2005-01-01	175
2006-01-01	184
2007-01-01	230
2008-01-01	292
2009-01-01	281
2010-01-01	287
2011-01-01	318
2012-01-01	320
2013-01-01	316
2014-01-01	303
2015-01-01	321
2016-01-01	283