Year	Number of Firms
2005-01-01	3
2006-01-01	6
2007-01-01	14
2008-01-01	18
2009-01-01	31
2010-01-01	34
2011-01-01	6
2012-01-01	17
2013-01-01	36
2014-01-01	23
2015-01-01	3
2016-01-01	6