Year	Number of Firms
1992-01-01	46
1997-01-01	45
2002-01-01	33
2003-01-01	36
2004-01-01	36
2005-01-01	34
2006-01-01	34
2007-01-01	46
2008-01-01	51
2009-01-01	42
2010-01-01	35
2011-01-01	36
2012-01-01	27
2013-01-01	29
2014-01-01	29
2015-01-01	25
2016-01-01	29