Year	Number of Firms
1992-01-01	36
1997-01-01	28
2002-01-01	34
2003-01-01	34
2004-01-01	44
2005-01-01	43
2006-01-01	38
2007-01-01	37
2008-01-01	46
2009-01-01	35
2010-01-01	33
2011-01-01	35
2012-01-01	34
2013-01-01	23
2014-01-01	38
2015-01-01	43
2016-01-01	38