Year	Number of Firms
1992-01-01	1
1997-01-01	4
2002-01-01	5
2003-01-01	8
2004-01-01	10
2005-01-01	11
2006-01-01	9
2007-01-01	6
2008-01-01	13
2009-01-01	17
2010-01-01	19
2011-01-01	21
2012-01-01	19
2013-01-01	20
2014-01-01	20
2015-01-01	18
2016-01-01	20