Year	Number of Firms
1997-01-01	5
2002-01-01	16
2003-01-01	15
2004-01-01	21
2005-01-01	29
2006-01-01	24
2007-01-01	32
2008-01-01	25
2009-01-01	32
2010-01-01	34
2011-01-01	21
2012-01-01	28
2013-01-01	25
2014-01-01	33
2015-01-01	38
2016-01-01	27