Year	Number of Firms
1992-01-01	1
2002-01-01	1
2003-01-01	4
2004-01-01	14
2005-01-01	19
2006-01-01	25
2007-01-01	44
2008-01-01	67
2009-01-01	33
2010-01-01	14
2011-01-01	13
2012-01-01	9
2013-01-01	9
2014-01-01	6
2015-01-01	4
2016-01-01	5