Year	Number of Firms
2004-01-01	1
2005-01-01	17
2006-01-01	58
2007-01-01	67
2008-01-01	143
2009-01-01	166
2010-01-01	189
2011-01-01	68
2012-01-01	123
2013-01-01	115
2014-01-01	90
2015-01-01	72
2016-01-01	54