Year	Number of Firms
1992-01-01	25
1997-01-01	18
2002-01-01	22
2003-01-01	30
2004-01-01	31
2005-01-01	41
2006-01-01	36
2007-01-01	38
2008-01-01	32
2009-01-01	47
2010-01-01	40
2011-01-01	52
2012-01-01	45
2013-01-01	44
2014-01-01	45
2015-01-01	50
2016-01-01	47