Year	Number of Firms
1992-01-01	5
1997-01-01	26
2002-01-01	23
2003-01-01	27
2004-01-01	23
2005-01-01	26
2006-01-01	20
2007-01-01	23
2008-01-01	31
2009-01-01	28
2010-01-01	58
2011-01-01	44
2012-01-01	41
2013-01-01	44
2014-01-01	47
2015-01-01	36
2016-01-01	55