Year	Number of Firms
1992-01-01	38
1997-01-01	52
2002-01-01	40
2003-01-01	43
2004-01-01	60
2005-01-01	50
2006-01-01	51
2007-01-01	43
2008-01-01	47
2009-01-01	28
2010-01-01	35
2011-01-01	40
2012-01-01	29
2013-01-01	29
2014-01-01	38
2015-01-01	37
2016-01-01	34