Year	Number of Firms
1992-01-01	74
1997-01-01	33
2002-01-01	34
2003-01-01	37
2004-01-01	36
2005-01-01	39
2006-01-01	53
2007-01-01	44
2008-01-01	51
2009-01-01	29
2010-01-01	34
2011-01-01	42
2012-01-01	41
2013-01-01	48
2014-01-01	43
2015-01-01	44
2016-01-01	44