Year	Number of Firms
1992-01-01	41
1997-01-01	34
2002-01-01	35
2003-01-01	30
2004-01-01	31
2005-01-01	34
2006-01-01	31
2007-01-01	29
2008-01-01	37
2009-01-01	32
2010-01-01	31
2011-01-01	33
2012-01-01	33
2013-01-01	37
2014-01-01	35
2015-01-01	24
2016-01-01	29