Year	Number of Firms
1997-01-01	6
2002-01-01	19
2003-01-01	16
2004-01-01	18
2005-01-01	24
2006-01-01	27
2007-01-01	36
2008-01-01	33
2009-01-01	46
2010-01-01	51
2011-01-01	64
2012-01-01	47
2013-01-01	53
2014-01-01	64
2015-01-01	69
2016-01-01	72