Year	Number of Firms
1992-01-01	8
1997-01-01	13
2002-01-01	17
2003-01-01	18
2004-01-01	23
2005-01-01	32
2006-01-01	41
2007-01-01	37
2008-01-01	41
2009-01-01	37
2010-01-01	37
2011-01-01	37
2012-01-01	42
2013-01-01	42
2014-01-01	32
2015-01-01	39
2016-01-01	31