Year	Number of Firms
1992-01-01	4
1997-01-01	5
2002-01-01	20
2003-01-01	14
2004-01-01	20
2005-01-01	20
2006-01-01	21
2007-01-01	25
2008-01-01	26
2009-01-01	19
2010-01-01	28
2011-01-01	23
2012-01-01	20
2013-01-01	22
2014-01-01	19
2015-01-01	11
2016-01-01	18