Year	Number of Firms
1992-01-01	56
1997-01-01	51
2002-01-01	56
2003-01-01	28
2004-01-01	49
2005-01-01	52
2006-01-01	49
2007-01-01	59
2008-01-01	56
2009-01-01	48
2010-01-01	38
2011-01-01	38
2012-01-01	47
2013-01-01	35
2014-01-01	24
2015-01-01	18
2016-01-01	15