Year	Number of Firms
1992-01-01	6
1997-01-01	15
2002-01-01	25
2003-01-01	16
2004-01-01	24
2005-01-01	25
2006-01-01	25
2007-01-01	35
2008-01-01	35
2009-01-01	47
2010-01-01	46
2011-01-01	51
2012-01-01	36
2013-01-01	48
2014-01-01	54
2015-01-01	50
2016-01-01	46