Year	Number of Firms
1992-01-01	2
1997-01-01	14
2002-01-01	6
2003-01-01	11
2004-01-01	10
2005-01-01	11
2006-01-01	32
2007-01-01	18
2008-01-01	27
2009-01-01	28
2010-01-01	33
2011-01-01	55
2012-01-01	49
2013-01-01	42
2014-01-01	30
2015-01-01	31
2016-01-01	33