Year	Number of Firms
1992-01-01	62
1997-01-01	53
2002-01-01	57
2003-01-01	61
2004-01-01	56
2005-01-01	57
2006-01-01	52
2007-01-01	72
2008-01-01	66
2009-01-01	59
2010-01-01	65
2011-01-01	57
2012-01-01	54
2013-01-01	48
2014-01-01	57
2015-01-01	57
2016-01-01	45