Year	Number of Firms
1997-01-01	1
2002-01-01	1
2004-01-01	2
2006-01-01	3
2007-01-01	7
2008-01-01	14
2009-01-01	19
2010-01-01	61
2011-01-01	35
2012-01-01	34
2013-01-01	26
2014-01-01	29
2015-01-01	16
2016-01-01	4