Year	Number of Firms
1992-01-01	34
1997-01-01	49
2002-01-01	51
2003-01-01	51
2004-01-01	60
2005-01-01	58
2006-01-01	62
2007-01-01	69
2008-01-01	72
2009-01-01	77
2010-01-01	77
2011-01-01	75
2012-01-01	73
2013-01-01	84
2014-01-01	82
2015-01-01	76
2016-01-01	76