Year	Number of Firms
1992-01-01	7
1997-01-01	16
2002-01-01	22
2003-01-01	18
2004-01-01	25
2005-01-01	29
2006-01-01	30
2007-01-01	35
2008-01-01	33
2009-01-01	36
2010-01-01	40
2011-01-01	40
2012-01-01	39
2013-01-01	44
2014-01-01	31
2015-01-01	32
2016-01-01	34