Year	Number of Firms
1997-01-01	10
2002-01-01	9
2003-01-01	14
2004-01-01	15
2005-01-01	16
2006-01-01	20
2007-01-01	24
2008-01-01	19
2009-01-01	23
2010-01-01	28
2011-01-01	36
2012-01-01	32
2013-01-01	37
2014-01-01	28
2015-01-01	36
2016-01-01	24