Year	Number of Firms
1992-01-01	31
1997-01-01	48
2002-01-01	61
2003-01-01	64
2004-01-01	65
2005-01-01	74
2006-01-01	73
2007-01-01	77
2008-01-01	88
2009-01-01	79
2010-01-01	67
2011-01-01	64
2012-01-01	73
2013-01-01	80
2014-01-01	78
2015-01-01	72
2016-01-01	77