Year	Number of Firms
1992-01-01	13
1997-01-01	13
2002-01-01	10
2003-01-01	12
2004-01-01	12
2005-01-01	20
2006-01-01	18
2007-01-01	20
2008-01-01	23
2009-01-01	16
2010-01-01	20
2011-01-01	23
2012-01-01	23
2013-01-01	24
2014-01-01	29
2015-01-01	18
2016-01-01	24