Year	Number of Firms
1997-01-01	5
2002-01-01	2
2003-01-01	10
2004-01-01	7
2005-01-01	14
2006-01-01	8
2007-01-01	10
2008-01-01	16
2009-01-01	18
2010-01-01	10
2011-01-01	11
2012-01-01	15
2013-01-01	26
2014-01-01	28
2015-01-01	23
2016-01-01	19