Year	Number of Firms
1997-01-01	38
2002-01-01	34
2003-01-01	42
2004-01-01	37
2005-01-01	54
2006-01-01	62
2007-01-01	55
2008-01-01	61
2009-01-01	73
2010-01-01	68
2011-01-01	76
2012-01-01	76
2013-01-01	73
2014-01-01	77
2015-01-01	76
2016-01-01	67