Year	Number of Firms
1997-01-01	6
2002-01-01	16
2003-01-01	19
2004-01-01	19
2005-01-01	24
2006-01-01	26
2007-01-01	35
2008-01-01	38
2009-01-01	35
2010-01-01	50
2011-01-01	54
2012-01-01	61
2013-01-01	51
2014-01-01	59
2015-01-01	70
2016-01-01	74