Year	Number of Firms
1992-01-01	13
1997-01-01	15
2002-01-01	29
2003-01-01	35
2004-01-01	36
2005-01-01	29
2006-01-01	26
2007-01-01	40
2008-01-01	41
2009-01-01	48
2010-01-01	54
2011-01-01	54
2012-01-01	46
2013-01-01	47
2014-01-01	33
2015-01-01	43
2016-01-01	32