Year	Number of Firms
1992-01-01	6
1997-01-01	12
2002-01-01	17
2003-01-01	17
2004-01-01	11
2005-01-01	13
2006-01-01	13
2007-01-01	19
2008-01-01	23
2009-01-01	16
2010-01-01	27
2011-01-01	30
2012-01-01	33
2013-01-01	30
2014-01-01	26
2015-01-01	25
2016-01-01	26