Year	Number of Firms
1992-01-01	14
1997-01-01	6
2002-01-01	6
2003-01-01	5
2004-01-01	6
2005-01-01	12
2006-01-01	13
2007-01-01	18
2008-01-01	19
2009-01-01	22
2010-01-01	19
2011-01-01	13
2012-01-01	25
2013-01-01	29
2014-01-01	25
2015-01-01	26
2016-01-01	22