Year	Number of Firms
1992-01-01	26
1997-01-01	37
2002-01-01	45
2003-01-01	39
2004-01-01	42
2005-01-01	41
2006-01-01	46
2007-01-01	43
2008-01-01	49
2009-01-01	42
2010-01-01	42
2011-01-01	43
2012-01-01	47
2013-01-01	47
2014-01-01	57
2015-01-01	45
2016-01-01	43