Year	Number of Firms
1992-01-01	3
1997-01-01	11
2002-01-01	16
2003-01-01	16
2004-01-01	22
2005-01-01	27
2006-01-01	25
2007-01-01	34
2008-01-01	31
2009-01-01	20
2010-01-01	20
2011-01-01	36
2012-01-01	37
2013-01-01	30
2014-01-01	31
2015-01-01	25
2016-01-01	19