Year	Number of Firms
1992-01-01	19
1997-01-01	40
2002-01-01	49
2003-01-01	63
2004-01-01	69
2005-01-01	74
2006-01-01	77
2007-01-01	84
2008-01-01	130
2009-01-01	188
2010-01-01	178
2011-01-01	158
2012-01-01	181
2013-01-01	186
2014-01-01	187
2015-01-01	158
2016-01-01	151