Year	Number of Firms
1992-01-01	10
1997-01-01	13
2002-01-01	13
2003-01-01	16
2004-01-01	14
2005-01-01	13
2006-01-01	20
2007-01-01	14
2008-01-01	20
2009-01-01	17
2010-01-01	19
2011-01-01	19
2012-01-01	17
2013-01-01	22
2014-01-01	20
2015-01-01	17
2016-01-01	15