Year	Number of Firms
1992-01-01	23
1997-01-01	39
2002-01-01	45
2003-01-01	29
2004-01-01	47
2005-01-01	44
2006-01-01	45
2007-01-01	56
2008-01-01	55
2009-01-01	73
2010-01-01	65
2011-01-01	70
2012-01-01	75
2013-01-01	78
2014-01-01	76
2015-01-01	80
2016-01-01	81