Year	Number of Firms
1992-01-01	12
1997-01-01	19
2002-01-01	30
2003-01-01	33
2004-01-01	35
2005-01-01	34
2006-01-01	36
2007-01-01	50
2008-01-01	46
2009-01-01	51
2010-01-01	45
2011-01-01	50
2012-01-01	44
2013-01-01	38
2014-01-01	37
2015-01-01	32
2016-01-01	32