Year	Number of Firms
2003-01-01	3
2004-01-01	15
2005-01-01	19
2006-01-01	16
2007-01-01	29
2008-01-01	29
2009-01-01	34
2010-01-01	25
2011-01-01	25
2012-01-01	19
2013-01-01	27
2014-01-01	29
2015-01-01	17
2016-01-01	29