Year	Number of Firms
1992-01-01	10
1997-01-01	12
2002-01-01	12
2003-01-01	17
2004-01-01	21
2005-01-01	17
2006-01-01	24
2007-01-01	27
2008-01-01	32
2009-01-01	27
2010-01-01	29
2011-01-01	32
2012-01-01	34
2013-01-01	35
2014-01-01	32
2015-01-01	33
2016-01-01	27