Year	Number of Firms
1992-01-01	3
1997-01-01	26
2002-01-01	25
2003-01-01	28
2004-01-01	29
2005-01-01	41
2006-01-01	44
2007-01-01	56
2008-01-01	67
2009-01-01	44
2010-01-01	37
2011-01-01	36
2012-01-01	49
2013-01-01	36
2014-01-01	46
2015-01-01	46
2016-01-01	42