Year	Number of Firms
1992-01-01	3
1997-01-01	44
2002-01-01	93
2003-01-01	128
2004-01-01	149
2005-01-01	168
2006-01-01	227
2007-01-01	224
2008-01-01	193
2009-01-01	142
2010-01-01	181
2011-01-01	142
2012-01-01	191
2013-01-01	219
2014-01-01	224
2015-01-01	188
2016-01-01	166