Year	Number of Firms
1992-01-01	48
1997-01-01	66
2002-01-01	56
2003-01-01	56
2004-01-01	63
2005-01-01	58
2006-01-01	56
2007-01-01	62
2008-01-01	58
2009-01-01	59
2010-01-01	55
2011-01-01	70
2012-01-01	70
2013-01-01	74
2014-01-01	76
2015-01-01	68
2016-01-01	67