Year	Number of Firms
1992-01-01	8
1997-01-01	12
2002-01-01	20
2003-01-01	22
2004-01-01	26
2005-01-01	27
2006-01-01	23
2007-01-01	33
2008-01-01	34
2009-01-01	33
2010-01-01	29
2011-01-01	34
2012-01-01	29
2013-01-01	30
2014-01-01	26
2015-01-01	27
2016-01-01	30