Year	Number of Firms
2002-01-01	17
2003-01-01	20
2004-01-01	61
2005-01-01	78
2006-01-01	71
2007-01-01	105
2008-01-01	110
2009-01-01	33
2010-01-01	4
2011-01-01	3
2012-01-01	2
2014-01-01	2