Year	Number of Firms
1992-01-01	50
1997-01-01	33
2002-01-01	56
2003-01-01	60
2004-01-01	62
2005-01-01	57
2006-01-01	62
2007-01-01	51
2008-01-01	70
2009-01-01	61
2010-01-01	80
2011-01-01	58
2012-01-01	47
2013-01-01	54
2014-01-01	51
2015-01-01	57
2016-01-01	50