Year	Number of Firms
1992-01-01	17
1997-01-01	28
2002-01-01	51
2003-01-01	61
2004-01-01	47
2005-01-01	53
2006-01-01	55
2007-01-01	57
2008-01-01	63
2009-01-01	67
2010-01-01	78
2011-01-01	68
2012-01-01	71
2013-01-01	58
2014-01-01	65
2015-01-01	68
2016-01-01	64