Year	Number of Firms
1992-01-01	23
1997-01-01	24
2002-01-01	16
2003-01-01	22
2004-01-01	17
2005-01-01	21
2006-01-01	17
2007-01-01	24
2008-01-01	27
2009-01-01	16
2010-01-01	17
2011-01-01	15
2012-01-01	18
2013-01-01	14
2014-01-01	17
2015-01-01	18
2016-01-01	5