Year	Number of Firms
1992-01-01	17
1997-01-01	14
2002-01-01	16
2003-01-01	15
2004-01-01	20
2005-01-01	11
2006-01-01	18
2007-01-01	13
2008-01-01	21
2009-01-01	14
2010-01-01	17
2011-01-01	27
2012-01-01	17
2013-01-01	21
2014-01-01	22
2015-01-01	18
2016-01-01	16