Year	Number of Firms
1997-01-01	23
2002-01-01	31
2003-01-01	34
2004-01-01	33
2005-01-01	48
2006-01-01	56
2007-01-01	40
2008-01-01	57
2009-01-01	53
2010-01-01	66
2011-01-01	74
2012-01-01	62
2013-01-01	67
2014-01-01	74
2015-01-01	71
2016-01-01	76