Year	Number of Firms
1992-01-01	2
1997-01-01	13
2002-01-01	11
2003-01-01	16
2004-01-01	16
2005-01-01	19
2006-01-01	18
2007-01-01	19
2008-01-01	27
2009-01-01	26
2010-01-01	19
2011-01-01	32
2012-01-01	29
2013-01-01	32
2014-01-01	32
2015-01-01	18
2016-01-01	19