Year	Number of Firms
1992-01-01	89
1997-01-01	193
2002-01-01	225
2003-01-01	249
2004-01-01	261
2005-01-01	233
2006-01-01	269
2007-01-01	298
2008-01-01	291
2009-01-01	281
2010-01-01	351
2011-01-01	352
2012-01-01	344
2013-01-01	357
2014-01-01	374
2015-01-01	350
2016-01-01	344