Year	Number of Firms
1992-01-01	148
1997-01-01	211
2002-01-01	258
2003-01-01	279
2004-01-01	270
2005-01-01	292
2006-01-01	311
2007-01-01	348
2008-01-01	351
2009-01-01	339
2010-01-01	375
2011-01-01	413
2012-01-01	418
2013-01-01	409
2014-01-01	441
2015-01-01	405
2016-01-01	450