Year	Number of Firms
1992-01-01	18
1997-01-01	28
2002-01-01	24
2003-01-01	22
2004-01-01	21
2005-01-01	19
2006-01-01	17
2007-01-01	17
2008-01-01	20
2009-01-01	19
2010-01-01	24
2011-01-01	18
2012-01-01	18
2013-01-01	12
2014-01-01	13
2015-01-01	8
2016-01-01	13