Year	Number of Firms
1992-01-01	81
1997-01-01	155
2002-01-01	135
2003-01-01	125
2004-01-01	126
2005-01-01	145
2006-01-01	153
2007-01-01	183
2008-01-01	184
2009-01-01	179
2010-01-01	183
2011-01-01	221
2012-01-01	198
2013-01-01	212
2014-01-01	227
2015-01-01	209
2016-01-01	226