Year	Number of Firms
1992-01-01	35
1997-01-01	46
2002-01-01	53
2003-01-01	36
2004-01-01	30
2005-01-01	33
2006-01-01	36
2007-01-01	36
2008-01-01	40
2009-01-01	37
2010-01-01	33
2011-01-01	33
2012-01-01	40
2013-01-01	42
2014-01-01	30
2015-01-01	29
2016-01-01	36