Year	Number of Firms
1992-01-01	39
1997-01-01	45
2002-01-01	61
2003-01-01	54
2004-01-01	64
2005-01-01	60
2006-01-01	57
2007-01-01	59
2008-01-01	62
2009-01-01	64
2010-01-01	54
2011-01-01	62
2012-01-01	54
2013-01-01	62
2014-01-01	61
2015-01-01	57
2016-01-01	61