Year	Number of Firms
1992-01-01	21
1997-01-01	14
2002-01-01	42
2003-01-01	52
2004-01-01	45
2005-01-01	44
2006-01-01	36
2007-01-01	48
2008-01-01	46
2009-01-01	46
2010-01-01	43
2011-01-01	44
2012-01-01	42
2013-01-01	41
2014-01-01	54
2015-01-01	49
2016-01-01	54