Year	Number of Firms
1992-01-01	14
1997-01-01	29
2002-01-01	30
2003-01-01	38
2004-01-01	41
2005-01-01	38
2006-01-01	41
2007-01-01	45
2008-01-01	55
2009-01-01	41
2010-01-01	43
2011-01-01	51
2012-01-01	49
2013-01-01	42
2014-01-01	50
2015-01-01	38
2016-01-01	36