Year	Number of Firms
1992-01-01	14
1997-01-01	20
2002-01-01	19
2003-01-01	25
2004-01-01	21
2005-01-01	42
2006-01-01	33
2007-01-01	34
2008-01-01	22
2009-01-01	27
2010-01-01	32
2011-01-01	22
2012-01-01	30
2013-01-01	32
2014-01-01	28
2015-01-01	30
2016-01-01	33