Year	Number of Firms
1992-01-01	5
1997-01-01	9
2002-01-01	4
2003-01-01	12
2004-01-01	9
2005-01-01	14
2006-01-01	16
2007-01-01	12
2008-01-01	12
2009-01-01	12
2010-01-01	13
2011-01-01	14
2012-01-01	13
2013-01-01	22
2014-01-01	23
2015-01-01	24
2016-01-01	17