Year	Number of Firms
1997-01-01	7
2002-01-01	23
2003-01-01	32
2004-01-01	37
2005-01-01	111
2006-01-01	147
2007-01-01	154
2008-01-01	208
2009-01-01	136
2010-01-01	96
2011-01-01	116
2012-01-01	100
2013-01-01	86
2014-01-01	110
2015-01-01	80
2016-01-01	81