Year	Number of Firms
1997-01-01	33
2002-01-01	22
2003-01-01	51
2004-01-01	55
2005-01-01	62
2006-01-01	61
2007-01-01	76
2008-01-01	84
2009-01-01	68
2010-01-01	69
2011-01-01	76
2012-01-01	68
2013-01-01	77
2014-01-01	93
2015-01-01	72
2016-01-01	87