Year	Number of Firms
1997-01-01	8
2002-01-01	13
2003-01-01	19
2004-01-01	21
2005-01-01	23
2006-01-01	22
2007-01-01	24
2008-01-01	26
2009-01-01	23
2010-01-01	27
2011-01-01	32
2012-01-01	38
2013-01-01	39
2014-01-01	45
2015-01-01	39
2016-01-01	43