Year	Number of Firms
1992-01-01	18
1997-01-01	53
2002-01-01	64
2003-01-01	78
2004-01-01	131
2005-01-01	184
2006-01-01	225
2007-01-01	281
2008-01-01	272
2009-01-01	269
2010-01-01	258
2011-01-01	292
2012-01-01	329
2013-01-01	332
2014-01-01	304
2015-01-01	211
2016-01-01	187