Year	Number of Firms
1992-01-01	13
1997-01-01	25
2002-01-01	23
2003-01-01	26
2004-01-01	28
2005-01-01	24
2006-01-01	37
2007-01-01	41
2008-01-01	53
2009-01-01	51
2010-01-01	44
2011-01-01	34
2012-01-01	50
2013-01-01	42
2014-01-01	46
2015-01-01	33
2016-01-01	37