Year	Number of Firms
1992-01-01	10
1997-01-01	23
2002-01-01	21
2003-01-01	24
2004-01-01	25
2005-01-01	20
2006-01-01	21
2007-01-01	34
2008-01-01	29
2009-01-01	33
2010-01-01	32
2011-01-01	24
2012-01-01	24
2013-01-01	24
2014-01-01	20
2015-01-01	27
2016-01-01	24