Year	Number of Firms
1992-01-01	2
1997-01-01	1
2002-01-01	7
2003-01-01	11
2004-01-01	14
2005-01-01	18
2006-01-01	17
2007-01-01	14
2008-01-01	16
2009-01-01	17
2010-01-01	27
2011-01-01	18
2012-01-01	27
2013-01-01	25
2014-01-01	18
2015-01-01	22
2016-01-01	22