Year	Number of Firms
1992-01-01	3
1997-01-01	5
2002-01-01	13
2003-01-01	13
2004-01-01	14
2005-01-01	16
2006-01-01	21
2007-01-01	17
2008-01-01	30
2009-01-01	32
2010-01-01	32
2011-01-01	41
2012-01-01	35
2013-01-01	42
2014-01-01	48
2015-01-01	42
2016-01-01	33