Year	Number of Firms
1992-01-01	16
1997-01-01	5
2002-01-01	20
2003-01-01	19
2004-01-01	22
2005-01-01	21
2006-01-01	16
2007-01-01	22
2008-01-01	16
2009-01-01	18
2010-01-01	23
2011-01-01	20
2012-01-01	20
2013-01-01	18
2014-01-01	15
2015-01-01	12
2016-01-01	16