Year	Number of Firms
1992-01-01	16
1997-01-01	31
2002-01-01	23
2003-01-01	25
2004-01-01	30
2005-01-01	35
2006-01-01	36
2007-01-01	43
2008-01-01	42
2009-01-01	36
2010-01-01	41
2011-01-01	49
2012-01-01	48
2013-01-01	40
2014-01-01	37
2015-01-01	43
2016-01-01	52