Year	Number of Firms
1992-01-01	15
1997-01-01	11
2002-01-01	12
2003-01-01	13
2004-01-01	15
2005-01-01	16
2006-01-01	19
2007-01-01	28
2008-01-01	35
2009-01-01	30
2010-01-01	53
2011-01-01	50
2012-01-01	49
2013-01-01	45
2014-01-01	47
2015-01-01	46
2016-01-01	42