Year	Number of Firms
1992-01-01	18
1997-01-01	34
2002-01-01	35
2003-01-01	39
2004-01-01	36
2005-01-01	47
2006-01-01	46
2007-01-01	49
2008-01-01	41
2009-01-01	45
2010-01-01	41
2011-01-01	36
2012-01-01	38
2013-01-01	39
2014-01-01	30
2015-01-01	38
2016-01-01	36